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Backgrounder #1999 on Smart Growth

January 22, 2007

Housing Affordability Smart Growth Abuses Are Creating a Rent Belt of High Cost Areas

By and

A hot topic of discussion for the past two years has been whether or not the United States was experienc­ing a "housing bubble" and whether the bubble's in­evitable "pop" would undermine financial markets and the economy. By late 2005, housing prices were expe­riencing some deflation, but the dramatic collapse in prices that some had expected was not in evidence through the first half of 2006.[1]

However, this may be changing. Preliminary reports for the third quarter of 2006 indicate price declines in a number of markets. If sustained, these declines will begin the process of restoring the promise of home­ownership to moderate-income families.

Over the past five years, home prices have escalated at a rapid pace in several U.S. markets and abroad, reaching exceptionally high levels in mid-2006. The median home price reached $576,300 in the Los Angeles area; $549,200 in parts of the New York City area; $443,400 in the Washington, D.C., area; $748,200 in San Jose; and $640,000 in Honolulu. These are just some of the markets where home prices are now unaffordable for most residents. According to the Housing Opportunity Index, compiled by the National Association of Home Builders (NAHB) and Wells Fargo Bank, less than 2 percent of Los Angeles area residents can afford to buy a median-priced exist­ing home, and less than 7 percent of households in the New York area have access to a median-priced house.[2]

While these areas have received much of the media's attention and news reports have created the impres­sion that the nation is in the grip of a speculative real estate bubble, nationwide data reveal that only a modest fraction of the country has exceptionally high and escalating prices. Indeed, houses are still affordable in most American communities. For the country as a whole, the median price for existing homes sold in the second quarter of 2006 was just $227,500. In fast-growing Atlanta, Dallas-Fort Worth, and Houston, median home prices are below $175,000. Areas with very high prices tend to have restrictive land-use practices and other impediments to development, such as impact fees, mandatory proffers, and growth boundaries.

In contrast to the few high-priced areas where homeownership is now beyond the reach of most people, 87.4 percent of households in Indianapolis, 79.1 percent in St. Louis, and 68.5 percent in Atlanta can afford to buy a median-priced house in the market. In 98 of the 199 areas covered by the NAHB report, 50 percent or more of the households in the area can afford a median-priced house.

While the national data reveal that the housing affordability problem is limited to the metropolitan areas of a few states-principally those in coastal areas-these regional price differences could signif­icantly affect public policy and shape future growth and prosperity in the United States.

First, escalating housing prices and shrinking affordability create hardships for moderate-income and low-income households. Forcing such households back into the rental market denies moderate-income families access to homeownership and the wealth-creation opportunities that homeownership provides.

Second, although these regional cost increases are typically a consequence of local land-use regula­tions, they inevitably lead to demands for increased government housing assistance or new federal, state, and local programs to promote homeowner­ship for those of modest means. As a result, taxpay­ers across the nation could be forced to offset the costs of counterproductive local land-use policies.

Third, growing regional disparities in housing costs encourage a shift of resources-most notably labor-from high-cost to low-cost areas as workers seek a higher standard of living as influenced by access to quality housing. Businesses will also shift their operations from high-cost areas to remain competitive in national and global markets. Recently published U.S. Census data show that states with high housing costs (e.g., California, New York, and Washington, D.C.) have lost significant domestic population to states with more moderate housing costs (e.g., Nevada,[3] Arizona, and Geor­gia). These losses were concentrated in high-cost major metropolitan areas, while smaller metropoli­tan and rural areas often gained population. If these trends continue, the resulting demographic shifts could significantly alter the nation's political and economic landscape.

America's Historic Migration Patterns

"Demography is destiny," claimed 19th century French mathematician August Comte in an obser­vation that underscores how profoundly shifts in population and changing growth rates can affect national and global events. Population changes over the past four centuries have influenced much of American history and economic development.

America's early development in the 17th and 18th centuries was spurred by European settlers seeking affordable land, farm and home ownership, and a higher standard of living than was achievable in Europe. As the East Coast became crowded and developed and as land costs increased beyond the means of ordinary people, new immigrants and the offspring of the existing population pushed west into the frontier, searching for the same standard of living and opportunities that encouraged their ancestors to leave Europe and cross the Atlantic.

These waves of westward expansion continued through most of the 19th century. As settlement reached the Pacific coast, new settlers continued the westward migration, filling in the gaps between the coasts. In 1790, America's center of population was estimated to lie in the northern reaches of the Ches­apeake Bay near Elk Neck, Maryland. By 1830, it had drifted west into what is now West Virginia, and it was in Ohio when the Civil War began. As people continued to move west and south, so did the country's population center, entering Indiana in 1890 and Illinois in 1950 and reaching central Mis­souri in 2000.[4]

As the U.S. population continued to move west during the early 20th century, the nation also began to see a movement from rural areas to urban areas as farm workers who were displaced by mechanization and were suffering falling incomes began to move to cities-many in the north- where better-paying factory jobs beckoned. Between 1900 and 2000, more than 90 percent of the nation's population became urbanized, with urban areas adding 185,000,000 residents.[5]

Within this larger movement, African-Americans in the rural areas of the South began to flee shrinking economic opportunities and racial discrimination for better lives in cities in the more tolerant North and West. Although the rural-to-urban migration pat­terns continued through the 20th century, the decades after World War II saw another shift of eco­nomic activity that induced workers to move from the Northern industrial belt to cities in the South and West to take advantage of lower costs and higher standards of living in the fast-growing Sun Belt.

These population shifts profoundly changed the affected regions. The populations of many Northern cities grew strongly during the first half of the cen­tury but began to decline in the second half while experiencing a significant change in their racial compositions. Conversely, the South and West boomed as populations in these regions grew rap­idly. These population changes shifted political rep­resentation in Congress away from Northern urban centers to suburbs and Southern and Western dis­tricts. The North-South income gap also began to narrow as manufacturing and other services dis­placed agriculture in many once largely rural states.

However, this movement west, which dominated American demographic patterns for the past six decades, may be reversing as high housing and transportation costs appear to be helping to dis­perse California's domestic population east to less costly regions of the country. Similarly, domestic demographic shifts to dominant metropolitan areas-notably New York and Chicago-have also reversed, most likely in response to high housing prices and the escalating costs associated with wors­ening traffic congestion.

Causes of the Housing Affordability Problem

Among the chief reasons for the escalating home prices in some parts of the nation is the growing practice in many communities of increasing the reg­ulations governing land use in ways that limit its supply for the construction of houses and apart­ments. Until recently, the vast majority of U.S. states and communities allowed for a relatively free mar­ket in land and seldom interfered with the use of privately owned land.

Zoning. Zoning was nonexistent until 1916, when New York City became the first to regulate land use in an effort to rationalize the various activ­ities (e.g., manufacturing, agriculture, shipbuilding, slaughterhouses, waste dumps, oil refining, retail, and residential) competing for space on an increas­ingly crowded island. A few years later, Commerce Secretary Herbert Hoover led the federal govern­ment to endorse zoning in the 1920s, and a number of communities adopted the practice in the follow­ing decade.

Some zoning restrictions were designed to exclude certain types of development from individ­ual jurisdictions, a power that the U.S. Supreme Court upheld in Village of Euclid v. Ambler Realty Co.[6] Not until the 1950s did zoning became more widespread as the postwar economic boom and accelerating prosperity encouraged veterans and their new families to move to the suburbs for better housing and a higher-quality lifestyle.

Although zoning became increasingly common after World War II, the communities that employed it did so in an attempt to balance fundamental prop­erty rights against health, safety, and nuisance issues caused by commercial and industrial uses. Beyond this, communities imposed very few restrictions on development of residential land. For example, they generally did not regulate unit type and size, lot size, setbacks, building materials, occupancy, and tenancy.

This began to change in the 1970s when fast-growing communities-mostly in California and Oregon-went beyond traditional zoning practices by implementing more intrusive land-use restric­tions (e.g., growth boundaries) to discourage peo­ple from moving into their communities or to confine new households to designated development areas to preserve natural land and/or agriculture. Until the 1990s, such restrictive practices were largely confined to California and Oregon; but beginning in the middle to late 1990s and spurred by the anti-suburban advocacy of the emerging smart growth and New Urbanist movements, more and more suburban communities and some cities began to use zoning and other forms of land-use regulation to deter growth and/or to limit access only to residents and businesses with desirable demographic attributes, using high incomes as a proxy for race, education, and ability to generate tax revenues commensurate with the cost of received public services. Some communities also encouraged childlessness to reduce public education expenses.

To achieve these economic and social outcomes, many communities adopted more restrictive land-use regulations and imposed so-called impact fees on new houses. Included among the more restric­tive land-use regulations were minimum lot sizes (one house per one, five, or 10 acres); downzoning (reducing permitted density, which increases lot sizes and diminishes the potential to construct affordable homes); growth boundaries (confining all development to a designated area); green belts, and other park or woodland set-asides. All of these restrictions add to the cost of a house by creating artificial land shortages that raise the price of approved building sites. Making housing more expensive limits ownership in and access to the community to the more affluent segment of society.

Impact Fees.  Access to a community can also be limited by impact fees, which are levied on each new house for the alleged purpose of compensating the community for the public costs incurred for new residents who move into the community. Of course, this rationalization ignores the tax revenue generated from these same new residents. Some parts of California levy impact fees of up to $70,000 per house. In other states and counties, fees of $20,000 to $40,000 are more common. This adds to the price of the house and deters moderate-income households from homeownership.

Building Regulations.  Another series of obsta­cles that are sometimes invoked, albeit infrequently, to deter moderate-income households from moving in are requirements that a new house meet certain minimum quality and amenity standards, all of which are designed to increase costs and limit access. Common amenity mandates include brick construction, minimum square footage of interior space, costly design standards, sidewalks, and sod lawns. Such mandated amenities and public inter­ference with design preferences are still relatively uncommon in the United States, but this may be changing as U.S. building regulations begin to con­form to patterns that have recently emerged in other advanced countries.

Although restrictive land-use regulations in the U.S., Australia, Ireland, and New Zealand are a rel­atively new phenomenon, such limits have been common in the United Kingdom for the past 60 years. However, in recent years, building regulations in all of these countries have increasingly interfered with basic design issues to force property owners and builders to conform to some preferred aesthetic standard regarding design, materials, and place­ment and to meet certain environmental standards regardless of any cost-benefit considerations. As a consequence, housing affordability in these coun­tries is about as bad as it is in the U.S. communities with the most restrictive smart growth strategies.

In some Australian communities, planners must approve such features as a house's color scheme, mail box materials, shrubbery, and room orientation in relation to backyard. In one Australian commu­nity where summer temperatures exceed 100 degrees Fahrenheit and winter temperatures dip into the 30s, the authorities granted a building per­mit with the stipulation that the new home have neither air conditioning nor heating (in order to deter global warming) and that such devices would not be added in the future. In Ireland, a county south of Dublin mandates roof color, gable over­hang, number and style of windows, exterior mate­rials and colors, and curvature of the driveway.[7]

EssexCounty in the United Kingdom requires new residential developments to provide ponds, bat boxes, nectar-laden flowers, roof gardens, and bal­conies instead of private backyards. Bicycle racks, sand pits, and trees must be placed in community streets to slow traffic to no more than 10 mph. Dep­uty Prime Minister John Prescott urged communi­ties in the rest of the U.K. to adopt the Essex requirements.[8] In several rural U.K. communities, an effort is underway to ban second homes, charge their owners' a "local impact tax," or require a per­mit from the local planning authority to change an existing primary residence to a second home by way of a sale.[9]

Combined with the existing land-use restrictions in these countries, these design mandates have sent home values soaring and have contributed to creat­ing some of the world's least affordable housing, even though the average size of a new English house is one-third the size of U.S. or Australian houses and nearly as small as the Spartan flats built by the East German government in the 1980s.

Two Affordability Surveys

Data compiled and reported by Demographia in its annual housing survey reveal worsening mea­sures of housing affordability in the 100 top metro­politan areas in six advanced countries.[10] Table 1 and Table 2 list the best and worst housing markets from Demographia's survey of 100 large metropolitan areas in the United States, Australia, the United King­dom, New Zealand, Canada, and Ireland. (For the complete results, see Appendix A.) Demographia's measure of affordability is the median multiple: the median home price in the market divided by the median household income in the same market. For example, Los Angeles's median house price is 11.2 times the area's median household income. The higher the median multiple, the less affordable is housing in that market.

These housing affordability losses are of compar­atively recent vintage. As late as 1995, the exces­sively high-cost markets of Los Angeles, San Francisco, and San Jose had median multiples of 4.0 or less.[11]

Because land-use regulations in the United States are largely a state or local responsibility,[12] afford­ability varies dramatically from one jurisdiction to the next, depending on local land-use laws and reg­ulations. America's devolution of land-use responsi­bility contrasts sharply with the practices of several other countries listed in Table 1 where national land regulations can take precedence over local and regional regulations. A review of Appendix A shows that all but one of the covered metropolitan areas in Australia, New Zealand, Ireland, and the U.K. are rated "severely unaffordable," which is a result of stricter land-use regulations and practices. Reflect­ing the regional diversity of land-use regulations in the United States and Canada, all but one of the "moderately unaffordable" or "affordable" metropol­itan areas are in the United States or Canada. Nota­bly, California accounts for eight of the 11 least affordable U.S. metropolitan areas.

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table 2

The regional diversity of affordability in the U.S. is further illustrated by the results of a survey of 182 U.S. metropolitan areas conducted by the NAHB and Wells Fargo Bank and reported quarterly in their Housing Opportunity Index (HOI).[13] Mirror­ing Demographia's survey, 19 of the 20 least afford­able U.S. metropolitan areas are in California. The remaining area is a component of the New York City area. Table 3 and Table 4 list the least affordable and most affordable U.S. housing markets for the third quarter of 2006. (For the full HOI results, see Appendix B.) The HOI uses data similar to those used in Demographia's survey but expresses them in terms of the percentage of houses in the market that a median-income household could afford to buy. In Los Angeles, which both surveys rank as the least affordable area, a median-income household could afford only 1.9 percent of the homes. By contrast, the median-income buyer in Springfield, Ohio- the most affordable region-could afford any one of 91.4 percent of houses in the area.

As in Demographia's survey, a number of Califor­nia metropolitan areas receive exceptionally poor affordability rankings. Defenders of smart growth policies, land-use restrictions, and growth controls often attempt to explain such poor ranking by con­tending that all of the high-cost metropolitan areas- San Francisco, Los Angeles, San Diego, New York, Seattle, and Boston-are prosperous, fast-growing areas that are attracting highly paid professional workers who are bidding up the price of existing housing stocks. However, growth has slowed signif­icantly in these markets, while strong growth con­tinues in Dallas-Fort Worth, Houston, and Atlanta-areas that have managed to preserve some measure of housing affordability through less regu­lation of land and building markets. Indeed, Hous­ton is still notable for the absence of any zoning.

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The Planning Penalty

Several recent studies of housing affordability corroborate the relationship between land-use reg­ulations and housing prices. In a study of more than 300 U.S. housing markets, Randal O'Toole of the Thoreau Institute estimates that "regions with growth-management planning have seen prices increase by 4 to 14 percent per year. Regions with­out such planning have seen prices increase by only 1 to 3 percent per year." O'Toole uses these differ­ences to calculate a "planning penalty" for each mar­ket, which estimates the share of a home's total price that is attributable to land-use regulations. Such penalties range from a low of $10,000 in South Carolina, where land-use planning is just taking hold, to more than $500,000 per house in the San Francisco Bay area, where aggressive land-use plan­ning has been practiced since the 1970s. O'Toole estimates that planning regulations cost U.S. home­buyers $275 billion annually.[14]

An earlier study by Edward L. Glaeser of Harvard University and Joseph Gyourko of the University of Pennsylvania found a similar relationship between housing costs and land-use regulations:

Measures of zoning strictness are highly correlated with high prices. While all of our evidence is suggestive, not definitive, it seems to suggest that land-use regulation is responsible for high housing costs where they exist.[15]

Impact on Low-Income and Moderate-Income Households

As home prices rise faster than incomes in a com­munity, fewer households can afford to purchase new homes, and those forced out of the homeown­ership market must rent or live with parents. These potential homebuyers are forced into the rental market and compete for available rental units, reducing vacancy rates and driving up rents. As a consequence, the poorest households in the com­munity are priced out of the rental market and forced to double up with others, cut back on other expenses, or seek government housing assistance. In extreme cases, some households at the margin may be forced into homelessness.

A recent study by the Public Policy Institute of California attempted to adjust the government's national poverty line of about $19,000 for a family of four by regional differences in housing costs and concluded, after the housing cost adjustment, that the incidence of poverty was greatest in Washing­ton, D.C., followed by the State of New York and California.[16] As Appendix A and Appendix B show, these areas ranked poorly in housing affordability.

For those at the bottom end of the income distri­bution, escalating housing costs push them into greater hardship as high rents force reductions in spending on other necessities. For those with higher but still modest incomes, high home prices preclude homeownership opportunities and all of the related benefits. According to the U.S. Census Bureau, citi­zens of these three jurisdictions have exceptionally high housing costs, high poverty rates, and home­ownership rates below the national average. In 2005, the homeownership rate was 68.9 percent nationally but only 59.7 percent in California, 45.8 percent in the District of Columbia, and 55.9 per­cent in New York.[17] According to 2004 data, home­ownership rates in major metropolitan areas in California and New York are even worse: 51.6 per­cent in Los Angeles, 50.6 percent in San Francisco, and 36.6 percent in the New York City area.[18]

As land-use restrictions in these jurisdictions worsen and as similar regulations spread to other states, homeownership rates may begin to decline. Perhaps as a harbinger of that trend, the national homeownership rate fell from 69.1 percent in 2005 to 68.5 percent in early 2006-the lowest rate since 2003. Many Virginia counties that form the suburbs of Washington, D.C., have recently placed severe restrictions on residential development, causing median-home prices to double in some jurisdictions in just a few years. Perhaps as a result of the region's diminished affordability, Virginia's homeownership rate has dropped from its peak of 75.1 percent in 2001 to 71.1 percent in 2005, indicating that Vir­ginia has 118,000 fewer home-owning households than if the 2001 rate had been maintained.

In response to the high housing costs in commu­nities with abusive land-use practices, many moder­ate-income public employees (e.g., firemen, policemen, teachers, clerks, building inspectors, and school bus drivers) are forced to live outside the community, often at great distances, to find housing within their budgets. Many of these workers travel an hour or more one-way to work, incurring higher transportation costs, which reduce their standards of living and diminish their quality of life, while contributing to worsening traffic congestion.[19] The U.S. Census Bureau has acknowledged this phe­nomenon by creating a new category called "extreme commutes."

Regional Economic Implications

While much of the recent concern about high housing costs has focused on their adverse impact on individuals and families, a growing body of evi­dence suggests that high housing costs are also affecting the economic health of some states, regions, and metropolitan areas. In addition to anecdotal evidence, the U.S. Census confirms that interstate and intercity migration by households and businesses from high-cost to low-cost areas is growing. Households move to enhance or sustain standards of living, and businesses move to main­tain competitiveness in national and global markets.

As noted earlier, patterns of migration from places of less opportunity to those offering more are common in the American experience. From Colo­nial times into the first part of the 20th century, the general migratory pattern in the United States was from the crowded eastern seaboard, where land costs were beyond the reach of many, into the fron­tier, which moved west as settled areas expanded.

From the 1920s to the early 1950s, poor south­ern sharecroppers-black and white-began to leave the southeastern states for higher-paying factory jobs in the North. Yet in the 1950s, many of those factory jobs began moving south and west in response to lower wages, cheaper land, and fewer labor unions. Workers and suppliers soon followed. Atlanta, Dallas, Houston, Phoenix, and Los Angeles expanded as the central cities of Detroit, Cleveland, Philadelphia, Buffalo, Chicago, and New York and other manufacturing centers declined in popula­tion, factories, and businesses. In every metropolitan area, the migrations were induced largely by cost differentials that encouraged business activity to move to remain competitive and profitable. For individu­als and families, these cost differences represented an opportunity to improve their living standards.

While wage and land cost differentials influenced the earlier migrations heavily, today's population shifts seem to be driven largely by land cost differ­entials, which influence people's standard of living by way of housing affordability. Given the current median home price of more than $700,000 in San Jose, California, entry-level tech workers, program­mers, and engineers cannot afford to take jobs in Silicon Valley, and the firms cannot afford to pay sal­aries that would allow out-of-area workers to main­tain an acceptable lifestyle. As a consequence, workers are discouraged from moving to California and businesses are encouraged to move elsewhere to remain competitive.

A growing amount of evidence-both anec­dotal[20] and from the U.S. Census Bureau-indi­cates that many California residents are moving to lower-cost areas of the state or nation. At the same time, economic development authorities in other states are eagerly using California's affordability problems to recruit California firms by offering attractive subsidies.[21] Even the federal government has had difficulty recruiting employees for its Los Angeles and San Francisco operations.[22]

U.S. Census data reveal this pattern of domestic migration, which is measured on the basis of states and metropolitan areas. A state's net domestic migration is the number of new residents that arrive from other states (excluding immigrants from other countries) minus the number of existing residents who leave for any other state. Immigrants from other countries are measured only after they become established in one state and then move to another state.

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Net domestic migration for a metropolitan area is calculated similarly. For example, net domestic migration for the Los Angeles area is the number of existing residents who move in from other U.S. met­ropolitan and rural areas minus the number of Los Angeles residents who move to other locations in the United States, including other areas in California.

Appendix C lists net domestic migration figures for 54 major metropolitan areas for 2000 to 2005, and Table 5 presents a summary of these results along with two measures of housing affordability. Over that five-year period, high housing cost areas that lost substantial numbers of domestic population include the Los Angeles area (-305,000 residents) and San Jose-San Francisco (-549,000). Over the same time period, Sacramento gained 141,000 resi­dents and Bakersfield gained 42,000. The biggest loser of all was the New York metropolitan area, which lost a staggering 1,175,000 residents.

The same data also measure domestic migration among the 50 states. Calculations for the period from 2000 to 2005 show that California lost 645,000 people, Massachusetts lost 233,000, New York lost 961,000, and New Jersey lost 188,000. Not surprisingly, states that gained include those with more competitive land markets and more affordable housing, at least relative to those that lost domestic population. These include Arizona (+392,000 people), Florida (+1,029,000), Nevada (+258,000), North Carolina (+222,000), Georgia (+217,000), and Texas (208,000). It is important to note that a state can lose domestic population while gaining in overall population due to foreign immi­gration and the "natural" increase caused by births exceeding deaths.

Table 5 shows that the biggest losers were in areas with the least affordable housing, while those that gained were in areas with more afford­able housing. In particular, both Phoenix and Las Vegas gained domestic migration; even though they are relatively expensive compared to housing nationwide, they are affordable relative to their nearby competitors-California's major large met­ropolitan areas. Similarly, domestic migration into high-cost Sacramento and Fresno has also contin­ued, probably because housing is much less expensive in these cities than in San Francisco, San Jose, Los Angeles, and San Diego.

The extent of domestic migration loss from the high-cost markets is reflected in Appendix C. The highest-cost markets (median multiples of 4.0 or more) lost 2.8 million domestic migrants between April 1, 2000, and July 1, 2005. Some high-cost mar­kets gained, especially those near higher-cost markets (e.g., Las Vegas, Phoenix, Tampa-St. Petersburg, Orlando, Sacramento, Fresno, and Portland). Less costly housing markets and smaller markets regis­tered an increase of 1.7 million domestic migrants.

These developments could portend a substantial reversal in U.S. demographic trends, with people moving out of the higher-cost markets, especially in the coastal West and the Northeast, to lower-cost inland markets in the West, Midwest, South, and Northeast. Further, the large gain in smaller markets could indicate that excessively high housing prices in smart growth markets are instigating the long-antici­pated but not yet seen movement away from the larger metropolitan areas, which is made possible by improved transportation and telecommunications.

As noted earlier, states and metropolitan areas that lost domestic population can still gain overall because of the natural increase in foreign immi­grants, which is of overwhelming significance in California and New York. Compared to 11.1 per­cent nationwide, 26.2 percent of California's popu­lation and 20.4 percent of New York's population is foreign born.[23]

As a result, some might argue that domestic migration is of little consequence to a region's eco­nomic health because the population is still grow­ing, along with incomes and production. However, the overall population increase may mask a signifi­cant shift in the productivity, wealth, and education of a region's population if the new entrants tend to be less skilled than those who are leaving for other states and metropolitan areas. In turn, these chang­ing demographic characteristics could affect the regional economy and its competitiveness.

This is not to suggest that immigration has nega­tive consequences, but only that domestic out-migration combined with the substitution of less educated and skilled workers for the more skilled could limit a region's economic vitality. As the Texas state demographer recently observed:

Domestic migrants are what demographers refer to as "positively selected." That means they tend to have higher levels of education and income than persons in the areas to which the migrants move. They tend to substantially increase the markets for various goods and services, including real estate.

Immigrants, on the other hand (today and historically), tend to be a bimodal group. Some have high levels of education and relatively high paying jobs; however a much larger proportion have relatively low levels of education and take relatively low-paying jobs. Immigrants have smaller effects on economic growth. Thus the growth of the post-2000 period [in Texas] has been less supportive of economic growth.[24]

While this analysis focuses on the potential pro­ductivity differences between immigrants and the indigenous population, other evidence and studies suggest a direct link between housing affordability and an area's economic vitality, which may not nec­essarily stem from the relative productivity of differ­ent population groups.

A 2005 staff working paper by Raven Saks at the Federal Reserve Board notes that economic studies have found a link between labor migration and local economic conditions and that area wage differences, compared to the cost of moving, influence a worker's decision to move. Because housing con­sumes a large share of a household's budget (19.2 percent in 2002), housing prices significantly affect the value of real wages in any area. Saks also notes that several studies have found that areas with high housing prices attract fewer migrants and that numerous studies have found a direct relationship between the intensity of an area's homebuilding restrictions and housing prices.

Based on these relationships, Saks hypothesizes that areas with restrictive land-use policies have less employment growth and higher wages. Using data from 85 metropolitan areas, she concludes that:

In places with relatively few barriers to con­struction, an increase in housing demand leads to a large number of new housing units and only a moderate increase in housing prices. In contrast, for an equal demand shock, places with more regulation experi­ence a 17 percent smaller expansion of the housing stock and almost double the increase in housing prices. Furthermore I find that housing supply regulations have a significant effect on local labor market dynamics. Whereas a 1 percent increase in labor de­mand generally leads to a 1 percent increase in the long-run level of employment, the em­ployment response is less than 0.8 percent in places where the housing supply is highly constrained.[25]

With housing shortages leading to labor short­ages and higher wages, businesses have an incentive to move to less costly areas of the country (or world) for a less costly and more abundant supply of labor (and customers). As businesses leave an area and others are discouraged from moving to it, economic activity and income growth slow.

State-by-state data on per capita personal income illustrate some of the possible emerging consequences of affordability-induced migratory patterns by com­paring recent income patterns in states with restrictive land-use patterns and housing affordability problems with income patterns in states without such prob­lems. The nationwide inflation-adjusted per capita personal income grew by 2.9 percent between 2000 and 2005, compared to just 0.6 percent in California, perhaps reflecting a 25-year trend of moderation stemming from land-use restrictions put in place beginning in the 1970s. In 1980, per capita personal income in California was 12.4 percent higher than the national average, but by 2005, that premium had declined steadily to just under 5 percent.

By contrast, Colorado benefited from spillover growth from companies and workers wanting a Western location at affordable prices. As a result of these location decisions, the Colorado economy has boomed over the past several decades. Colorado's per capita personal income was below California's in the 1980s but moved ahead of it by 2000 as migrants seeking a better standard of living brought their money and skills to the state. However, Colo­rado has seen little income gain since 2000, perhaps reflecting the recent spread of California-type land-use restrictions and building regulations.

Oregonresidents have seen their standard of liv­ing erode in response to three decades of restrictive growth boundaries and other New Urbanist schemes that have diminished affordability and raised costs. Oregonians' standard of living has declined from being virtually identical to the national average in the 1960s to 8.5 percent below the national average in 2005, a period that coincides with the imposition of growth boundaries in the mid-1970s. Although voters twice approved refer­enda in 2004 that relaxed the growth boundaries, the state's obsessive resistance to highway expan­sion has led to serious traffic congestion in Portland that has encouraged businesses to move elsewhere despite improvements in housing affordability.[26]

Similarly, New York's income premium over the national average has slipped as affordability has worsened. Personal incomes in New York were 19 percent above the national average in 1990 but fell to 14 percent by 2005.

In contrast to the slipping performance in some of the states with housing affordability problems, several states with few or no land-use impediments have seen important gains in their economic perfor­mance. Affordable Georgia has seen high popula­tion growth driven by domestic migration, which has significantly influenced its standard of living. Personal income in Georgia increased from 21 per­cent below the national average in 1980 to 12 per­cent below by 2005 as new businesses and skilled workers moved into the state.

Other Cost and Opportunity Factors

All things being equal, both businesses and workers will be inclined to locate in places where profits and real incomes are highest. Much of Amer­ican history reflects the occasional and sometimes substantial migration of people from one region to another in search of better opportunities. In some cases, the opportunities consisted of jobs and better pay, while in other cases, the quest for a higher stan­dard of living (and better profits) drove an exodus from high-cost regions to low-cost regions.

As noted in the previous section, high-cost hous­ing and the search for affordable housing appear to influence domestic migration patterns significantly. With housing expenditures accounting for 15 per­cent of personal consumption expenditures in 2005 (second only to medical care), changes in housing costs can significantly influence an individual's stan­dard of living.

Transportation Cost Differences.  More recently, a growing body of anecdotal evidence suggests that relative differences in regional transportation costs may also influence the domestic migration of busi­nesses and households. While out-of-pocket trans­portation costs account for only about 7 percent of household income and do not vary greatly from region to region as both fuel and motor vehicles trade in national markets, congestion-related delays-another important transportation "cost"- reduce leisure time for households and raise operat­ing costs for businesses as deliveries and personnel are delayed in traffic.

Each year, the Texas Transportation Institute (TTI) calculates a series of congestion measures for 85 of the largest urban areas in the country, and the results show that average traffic congestion has grown steadily worse from each year to the next.[27] The TTI's Travel Time Index measures rush hour travel time compared to the time required to travel the same distance during off-peak hours. In 2003 (the most recent data available), the average Travel Time Index for all 85 areas was 1.37, up from 1.12 in 1982. This means that rush hour travel times were 37 percent longer than during off-peak times in 2003. On average, congestion was worse in the larger areas, while the smallest measured areas (populations under 500,000) were the least con­gested, averaging an Index of 1.10 in 2003.

Among the individual urban areas, Los Angeles had the worst traffic congestion (1.75), followed by Chicago; San Francisco; Washington, D.C.; Miami; Houston; Detroit; Atlanta; and New York. With the exception of Washington, Houston, and Atlanta, all of the badly congested areas experienced domestic out-migration. Except for Atlanta and Houston, all suffered from unaffordable housing. Notably, six of the 25 worst metropolitan areas for traffic conges­tion were in California, which experienced the larg­est domestic out-migration of all 50 states, followed by New York.

Other measures of traffic congestion and com­muting problems reveal much the same relation­ships. For 2003, the U.S. Census Bureau ranked states, cities, and counties by the percentage of workers who experienced "extreme commutes," which are defined as one-way commutes that exceed 90 minutes. According to the U.S. Census Bureau, three (California, New Jersey, and New York) of the four states with the largest share of extreme commuters also experienced out-migra­tion, while six of the 10 U.S. counties with the greatest share of extreme commuters were in New York. Among the 10 worst cities for commuters, three were in California and two were in the New York metropolitan area,[28] both of which have lost domestic population since 2000.

While high home prices tend to affect regional demographic trends by influencing households' deci­sions to stay or leave, congestion costs primarily influ­ence business location decisions, which in turn influence households who may choose to migrate in response to improving or worsening job opportuni­ties. In recent years, several researchers have attempted to estimate the cost imposed by traffic con­gestion on a metropolitan area. One study conducted by the National Cooperative Highway Research Pro­gram of the Transportation Research Board concluded that such costs might be substantial:

Traffic congestion imposes costs to busi­nesses beyond the mere vehicle and driver costs of delay, including potential effects on inventory costs, logistics costs, reliability costs, just-in-time processing costs, and re­ductions in market areas for workers, cus­tomers and incoming/outgoing deliveries…. Businesses may respond to worsening traffic congestion in a variety of ways, including moving away, going out of business, and ad­justing to smaller market areas for workers, suppliers, and customers-with some result­ing loss of productivity.[29]

Using Chicago and Philadelphia as case studies, the model, which estimates the impact of traffic relief or delays on economic production, shows that a 10 percent reduction in travel times (less conges­tion) focused on business delivery of products and services would reduce costs by $980 million in Chi­cago and by $240 million in Philadelphia. Looking at how congestion may affect the labor supply, com­mute times, and the availability of workers, the researchers estimate that a 10 percent reduction in travel times would save $350 million in Chicago and $200 million in Philadelphia.[30]

While housing and transportation costs appear to be a significant influence on where households and businesses relocate, other costs also affect business location and household migration patterns. Relative differences in wages, union work rules, tax policy, business regulation, and other exogenous factors encourage or discourage businesses (and therefore households) to locate in or away from certain regions, states, and markets. How these factors work together and which ones are more important are still debatable questions and will likely remain so for the foreseeable future as smart growth advo­cates look to blame factors other than land-use reg­ulations and anti-car policies.

Influence of Economic Decline on Migration

While extensive out-migration may contribute to regional economic decline as households take their skills and financial resources elsewhere, out-migra­tion is often induced by relative economic decline. Notwithstanding relative differences in housing affordability and transportation costs, diminishing employment opportunities and incomes can encourage existing workers to move to places with more robust economies and better job prospects.

Many metropolitan areas with moderately unaf­fordable or affordable housing and minimal traffic congestion experienced significant out-migration between 2000 and 2005. (See Appendix C.) Most of these are older manufacturing centers in the North­east that have lost core businesses to obsolescence and/or to other regions or countries beginning in the 1950s and continuing into the new century. Many also have central cities with more serious social problems, while some have reputations for less effective local government. These include the markets of Philadelphia, Detroit, Cincinnati, Day­ton, St. Louis, Cleveland, Rochester, Buffalo and Pittsburgh, and New Orleans.[31]

Even so, each of these historically declining met­ropolitan areas (except for Detroit) lost fewer domestic migrants from 2000 to 2005 than did San Diego, which was one of the nation's fastest-growing metropolitan areas from World War II to 2000. The substantial out-migration from high housing cost and high congestion areas like Chicago and New York may be exacerbated by the same factors.

Conclusion

The Federal Reserve's effort to deter inflation by raising interest rates has had the expected effect of slowing the economy slightly and the homebuilding market substantially. As a consequence, home prices in many markets peaked in early 2006 and fell slightly in several areas during the second half of the year. While falling home prices will make housing more affordable to some, restrictive federal macroeconomic policies are a clumsy and counter­productive way to promote homeownership, and the benefits accruing to a few are probably offset by the tens of thousands of roofers, carpenters, plumb­ers, and others in the building trades who no longer have a job.

A better solution is to attack the root cause of the affordability problem-restrictive land-use regula­tions-and increase the supply of building lots. If such a policy were implemented in any of the impacted areas, home prices in now-unaffordable regions like Los Angeles, Washington, New York City, and Miami would begin to return to affordable levels. Efforts to turn back such regulations are underway in a number of communities. The most notable is a recent ballot box victory that forced Oregon to relax its regulations.

The overly regulated metropolitan areas seem likely to experience considerably less population and economic growth in the future than would have occurred if their land-use policies had not broken the historic relationship between house values and household incomes. To restore higher levels of eco­nomic growth, such areas will need to liberalize their land-use policies.

In the meantime, affordable metropolitan areas that have not grown as strongly in recent decades face a unique opportunity for renewal and expan­sion. Such areas-many in the long-dormant Mid­west-will need to ignore the siren song of excessive land-use regulation to take advantage of their potential.

Wendell Cox, Principal of the Wendell Cox Con­sultancy in St. Louis, Missouri, is a Visiting Fellow at The Heritage Foundation. Ronald D. Utt, Ph.D., is Herbert and Joyce Morgan Senior Research Fellow in the Thomas A. Roe Institute for Economic Policy Stud­ies at The Heritage Foundation.

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