False Assumption Registry

There is no housing bubble (2008)

False Assumption: Rising housing prices before 2008 reflected economic fundamentals with no bubble present.

Summaries Written by FARAgent (AI) on February 16, 2026 · Pending Verification

In the early 2000s, as U.S. housing prices climbed steeply, many economists dismissed talk of a bubble. They argued that the gains reflected solid economic fundamentals, such as low interest rates, population growth in desirable cities, and constrained land supply. Chris Mayer and Todd Sinai, in their 2006 Brookings paper titled "Bubble, Bubble, Where’s the Housing Bubble?", used regression models to show that prices aligned with historical trends and rental values. Gary Smith and Margaret Hwang Smith, economists at Pomona College, reinforced this view by calculating home values as the present value of future rents, concluding in 2005 that most markets were fairly priced. Media echoed the sentiment; a 2005 Wall Street Journal op-ed declared, "Bubble Trouble? Not Likely." Policymakers and investors took comfort in these assurances, seeing no need for intervention.

Warnings came from skeptics like Robert Shiller, who in 2005 NBER work highlighted irrational exuberance and misperceptions driving prices far above fundamentals. Paul Krugman, in columns that year, called it a clear bubble fueled by speculation on the coasts. These voices went largely unheeded. Then the market collapsed in 2007-2008. Prices plummeted, wiping out trillions in wealth, triggering mass foreclosures, and sparking a global financial crisis. The denial of a bubble had delayed regulatory action, amplifying the damage.

Today, experts agree the assumption was wrong. The 2008 crash proved that prices had detached from fundamentals, inflated by lax lending and speculation. A 2009 review by economists labeled it a systemic failure of academic models. The debate has settled; what was once conventional wisdom is now a cautionary tale in finance.

Status: Mainstream now strongly agrees this assumption was false
People Involved
  • Chris Mayer taught real estate at Columbia Business School. He co-authored papers and op-eds denying a housing bubble. In a 2005 Wall Street Journal piece with Todd Sinai, he called skeptics economically illiterate Chicken Littles. The market crash in 2008 proved him wrong. [1][9]
  • Todd Sinai worked at the Wharton School. He partnered with Chris Mayer and Charles Himmelberg on research claiming prices reflected fundamentals. Their 2005 paper argued little evidence of a bubble existed in 2004. Housing values collapsed soon after. [1][3][5][6][8][9]
  • Gary Smith was an economist at Pomona College. With his wife Margaret Hwang Smith, he published analyses using rent data to show homes were attractive investments. Their 2006 Brookings paper questioned any bubble. The financial crisis exposed their models' flaws. [1][2][4][7]
  • Margaret Hwang Smith collaborated with Gary Smith at Pomona. They estimated home values from rents in ten metro areas. Their work claimed buying remained smart. Prices plummeted in 2008, contradicting their conclusions. [1][2][4][7]
  • Charles Himmelberg served as a senior economist at the Federal Reserve Bank of New York. He co-wrote papers adjusting for interest rates to downplay bubble risks. His 2005 analysis found prices reasonable. The crash invalidated his metrics. [3][5][6][8]
  • Robert Shiller held a professorship at Yale. He warned for years of an unprecedented housing bubble. He predicted real prices might fall 50 percent. Events in 2008 bore him out. [2][7]
  • Paul Krugman wrote as an economist and columnist. In 2005, he declared a coastal housing bubble with air leaking out. His alerts went unheeded until the market imploded. [2][7]
▶ Supporting Quotes (20)
“Chris Mayer and Todd Sinai (two Ivy League economists) wrote in 2005 in the Wall Street Journal that “economic logic” established the nonexistence of the bubble and that those who thought otherwise were economically illiterate “Chicken Littles.””— We Built Reality: How Social Science Infiltrated Culture, Politics, and Power
“Gary Smith and Margaret Hwang Smith of Pomona authored a public policy piece in 2006 entitled “Bubble, Bubble, Where’s the Housing Bubble?” In it they used economic models to argue that “the bubble is not . . . a bubble” and that “buying a house at current market prices” is an “attractive long-term investment.””— We Built Reality: How Social Science Infiltrated Culture, Politics, and Power
“Our evidence indicates that, even though prices have risen rapidly and some buyers have unrealistic expectations of continuing price increases, the bubble is not, in fact, a bubble in most of these areas: under a variety of plausible assumptions about fundamentals, buying a home at current market prices still appears to be an attractive long-term investment.”— Bubble, Bubble, Where’s the Housing Bubble?
“Robert Shiller has issued similar alarms for several years and, in June 2005, warned that, “The [housing] market is in the throes of a bubble of unprecedented proportions that probably will end ugly.” Shiller suggests that real housing prices might fall by 50 percent over the next decade.”— Bubble, Bubble, Where’s the Housing Bubble?
“In August 2005 Paul Krugman argued that there was definitely a housing bubble on the coasts and that, indeed, the air had already begun leaking out.”— Bubble, Bubble, Where’s the Housing Bubble?
“Himmelberg: Senior Economist, Research and Statistics Group, Federal Reserve Bank of New York (email: [email protected]).”— Assessing High House Prices: Bubbles, Fundamentals and Misperceptions
“Mayer: Paul Milstein Professor of Real Estate and Director of the Paul Milstein Center for Real Estate, Columbia Business School, Columbia University (email: [email protected]).”— Assessing High House Prices: Bubbles, Fundamentals and Misperceptions
“Sinai: Wharton School of the University of Pennsylvania (email: [email protected]).”— Assessing High House Prices: Bubbles, Fundamentals and Misperceptions
“Margaret Hwang Smith (Pomona College) Gary Smith (Pomona College)”— Bubble, Bubble, Where’s the Housing Bubble?
“Registered: Gary Smith”— Bubble, Bubble, Where’s the Housing Bubble?
“Himmelberg, Charles, Christopher Mayer, and Todd Sinai. 2005. "Assessing High House Prices: Bubbles, Fundamentals and Misperceptions." Journal of Economic Perspectives 19 (4): 67–92.”— Assessing High House Prices: Bubbles, Fundamentals and Misperceptions
“In doing so, we correct four common fallacies about the costliness of the housing market.”— Assessing High House Prices: Bubbles, Fundamentals and Misperceptions
“Charles Himmelberg, Christopher Mayer and Todd Sinai, "Assessing High House Prices: Bubbles, Fundamentals and Misperceptions," NBER Working Paper 11643 (2005)”— Assessing High House Prices: Bubbles, Fundamentals, and Misperceptions
“Robert Shiller has issued similar alarms for several years and, in June 2005, warned that, “The [housing] market is in the throes of a bubble of unprecedented proportions that probably will end ugly.”1 Shiller suggests that real housing prices might fall by 50 percent over the next decade.”— Bubble, Bubble, Where's the Housing Bubble? | Brookings
“In August 2005 Paul Krugman argued that there was definitely a housing bubble on the coasts and that, indeed, the air had already begun leaking out.”— Bubble, Bubble, Where's the Housing Bubble? | Brookings
“Margaret Hwang Smith and Gary Smith Pomona College”— Bubble, Bubble, Where's the Housing Bubble? | Brookings
“Discussants: Christopher Mayer”— Bubble, Bubble, Where's the Housing Bubble? | Brookings
“Charles Himmelberg & Christopher Mayer & Todd Sinai, 2005. "Assessing High House Prices: Bubbles, Fundamentals and Misperceptions," Journal of Economic Perspectives, American Economic Association, vol. 19(4), pages 67-92, Fall.”— Assessing High House Prices: Bubbles, Fundamentals and Misperceptions
“Chris Mayer and Todd Sinai, “Bubble Trouble? Not Likely,” Wall Street Journal, September 19, 2005, https://www.wsj.com/articles/SB112708454245544394.”— We Built Reality: How Social Science Infiltrated Culture, Politics, and Power
“Margaret Hwang Smith and Gary Smith, “Bubble, Bubble, Where’s the Housing Bubble?,” Brookings Papers on Economic Activity 1 (2006): 1–67.”— We Built Reality: How Social Science Infiltrated Culture, Politics, and Power
Organizations Involved

Pomona College housed economists who published denials of a housing bubble. Their models portrayed prices as sustainable. The institution lent academic weight to these views until the 2008 crash. [1]

The Brookings Institution issued papers skeptical of bubble claims. It featured work by Margaret Hwang Smith and Gary Smith in 2006. This added policy credibility to the no-bubble stance. [2][4][7]

The National Bureau of Economic Research distributed working papers like the 2005 one by Charles Himmelberg, Christopher Mayer, and Todd Sinai. It promoted assessments that downplayed overvaluation. The organization influenced economists before the downturn. [3][6][8]

The Federal Reserve Bank of New York employed Charles Himmelberg and released his staff reports. These argued fundamentals justified high prices. The Fed's role amplified complacency in financial circles. [3][8]

Columbia Business School supported Christopher Mayer through its real estate center. It funded research concluding no large bubble in 2004. The school's prestige helped sustain the assumption. [3]

The Wharton School backed Todd Sinai and funded related papers. Its real estate center promoted views that prices aligned with economic factors. The crash challenged this output. [3]

The American Economic Association published the no-bubble analysis in its Journal of Economic Perspectives. This lent authority to claims of reasonable pricing. Economists cited it widely until 2008. [5][8]

The Wall Street Journal ran op-eds denying bubble risks. It reached investors and policymakers with assurances from academics. The paper's platform spread the idea effectively. [1][9]

The UCLA Anderson Forecast warned of a California housing bubble in 2004 and earlier. It countered the dominant no-bubble narrative. Its alerts gained traction post-crash. [2][7]

▶ Supporting Quotes (17)
“Gary Smith and Margaret Hwang Smith of Pomona authored a public policy piece in 2006 entitled “Bubble, Bubble, Where’s the Housing Bubble?””— We Built Reality: How Social Science Infiltrated Culture, Politics, and Power
“In December 2004 UCLA Anderson Forecast’s Economic Outlook described the California housing market as a bubble, repeating their warnings made in previous years.”— Bubble, Bubble, Where’s the Housing Bubble?
“Our results also demonstrate that models that gauge a housing bubble by comparing movements in housing price indexes with movements in other indexes or with the values predicted by regression models are flawed”— Bubble, Bubble, Where’s the Housing Bubble?
“NBER WORKING PAPER SERIES ... NATIONAL BUREAU OF ECONOMIC RESEARCH.”— Assessing High House Prices: Bubbles, Fundamentals and Misperceptions
“Himmelberg: Senior Economist, Research and Statistics Group, Federal Reserve Bank of New York.”— Assessing High House Prices: Bubbles, Fundamentals and Misperceptions
“The Paul Milstein Center for Real Estate at Columbia ... provided funding.”— Assessing High House Prices: Bubbles, Fundamentals and Misperceptions
“The Paul Milstein Center for Real Estate at Columbia and the Zell/Lurie Real Estate Center at Wharton provided funding.”— Assessing High House Prices: Bubbles, Fundamentals and Misperceptions
“Brookings Papers on Economic Activity, Economic Studies Program, The Brookings Institution, vol. 37(1), pages 1-68.”— Bubble, Bubble, Where’s the Housing Bubble?
“Journal of Economic Perspectives 19 (4): 67–92.”— Assessing High House Prices: Bubbles, Fundamentals and Misperceptions
“NBER Working Paper 11643”— Assessing High House Prices: Bubbles, Fundamentals, and Misperceptions
“The Brookings Institution is committed to quality, independence, and impact.”— Bubble, Bubble, Where's the Housing Bubble? | Brookings
“In December 2004 UCLA Anderson Forecast’s Economic Outlook described the California housing market as a bubble, repeating their warnings made in previous years.”— Bubble, Bubble, Where's the Housing Bubble? | Brookings
“Journal of Economic Perspectives, American Economic Association, vol. 19(4), pages 67-92, Fall.”— Assessing High House Prices: Bubbles, Fundamentals and Misperceptions
“Other versions of this item: Charles Himmelberg & Christopher Mayer & Todd Sinai, 2005. "Assessing High House Prices: Bubbles, Fundamentals, and Misperceptions," NBER Working Papers 11643, National Bureau of Economic Research, Inc.”— Assessing High House Prices: Bubbles, Fundamentals and Misperceptions
“Charles P. Himmelberg & Christopher J. Mayer & Todd M. Sinai, 2005. "Assessing high house prices: bubbles, fundamentals, and misperceptions," Staff Reports 218, Federal Reserve Bank of New York.”— Assessing High House Prices: Bubbles, Fundamentals and Misperceptions
“Chris Mayer and Todd Sinai, “Bubble Trouble? Not Likely,” Wall Street Journal, September 19, 2005, https://www.wsj.com/articles/SB112708454245544394.”— We Built Reality: How Social Science Infiltrated Culture, Politics, and Power
“Margaret Hwang Smith and Gary Smith, “Bubble, Bubble, Where’s the Housing Bubble?,” Brookings Papers on Economic Activity 1 (2006): 1–67.”— We Built Reality: How Social Science Infiltrated Culture, Politics, and Power
The Foundation

Economists in the early 2000s cited models showing housing prices reflected fundamentals. They argued low interest rates and growth justified the rises. These claims seemed solid based on historical data. The 2008 crash showed they were wrong. [1][3][5][6][8][9]

Researchers used rent data to estimate home values. They calculated present values of future rents. This method deemed prices attractive in many cities. It ignored speculation and leverage. The approach failed when markets collapsed. [2][4][7]

Conventional metrics like price-to-rent ratios were dismissed as misleading. Experts adjusted for local growth and low rates. Their user cost formulas showed 2004 prices as reasonable. Subprime risks went unmentioned. Reality proved otherwise. [3][5][6][8]

Nationwide price surges were seen as evidence against a bubble. Some argued widespread increases pointed to fundamentals, not speculation. This view propped up confidence. The national downturn exposed its error. [7]

▶ Supporting Quotes (16)
“they used economic models to argue that “the bubble is not . . . a bubble””— We Built Reality: How Social Science Infiltrated Culture, Politics, and Power
“We first show how to estimate the fundamental value of a home from rent data. We then use this procedure to estimate the fundamental value of homes in ten urban housing markets using a unique set of rent and sale price data for matched single-family homes.”— Bubble, Bubble, Where’s the Housing Bubble?
“Housing bubble enthusiasts implicitly assume that market prices were, on average, equal to fundamental values in the past in order to conclude that recent increases have pushed prices above fundamental values. Perhaps, instead, housing prices were too low in the past and recent price increases have brought market prices more in line with fundamentals.”— Bubble, Bubble, Where’s the Housing Bubble?
“Conventional metrics like the growth rate of house prices, the price-to-rent ratio, and the price-to-income ratio can be misleading because they fail to account both for the time series pattern of real long-term interest rates and predictable differences in the long-run growth rates of house prices across local markets.”— Assessing High House Prices: Bubbles, Fundamentals and Misperceptions
“These factors are especially important in recent years because house prices are theoretically more sensitive to interest rates when rates are already low, and more sensitive still in those cities where the long-run rate of house price growth is high.”— Assessing High House Prices: Bubbles, Fundamentals and Misperceptions
“We construct a measure for evaluating the cost of home owning that is standard for economists – the imputed annual rental cost of owning a home, a variant of the user cost of housing – and apply it to 25 years of history across a wide variety of housing markets.”— Assessing High House Prices: Bubbles, Fundamentals and Misperceptions
“We show how to estimate the fundamental value of a home from rent data. We then apply this procedure in ten metropolitan areas, using a unique set of rent and sale price data for matched single-family homes.”— Bubble, Bubble, Where’s the Housing Bubble?
“Discussions of whether a housing bubble exists generally rely on indirect barometers such as rapidly increasing prices, unrealistic expectations of future price increases, and rising ratios of housing price indexes to indexes of household income. Such measures cannot, however, answer the key question”— Bubble, Bubble, Where’s the Housing Bubble?
“conventional metrics for assessing pricing in the housing market such as price-to-rent ratios or price-to-income ratios generally fail to reflect accurately the state of housing costs. To the eyes of analysts employing such measures, housing markets can appear "exuberant" even when houses are in fact reasonably priced.”— Assessing High House Prices: Bubbles, Fundamentals and Misperceptions
“we construct a measure for evaluating the cost of home owning that is standard for economists—the imputed annual rental cost of owning a home, a variant of the user cost of housing”— Assessing High House Prices: Bubbles, Fundamentals and Misperceptions
“Conventional metrics like the growth rate of house prices, the price-to-rent ratio, and the price-to-income ratio can be misleading because they fail to account both for the time series pattern of real long-term interest rates and predictable differences in the long-run growth rates of house prices across local markets.”— Assessing High House Prices: Bubbles, Fundamentals, and Misperceptions
“These factors are especially important in recent years because house prices are theoretically more sensitive to interest rates when rates are already low, and more sensitive still in those cities where the long-run rate of house price growth is high.”— Assessing High House Prices: Bubbles, Fundamentals, and Misperceptions
“HOUSING PRICES HAVE risen by about 50 percent in the past five years, and more than 100 percent in some hot markets.”— Bubble, Bubble, Where's the Housing Bubble? | Brookings
“conventional metrics for assessing pricing in the housing market such as price-to-rent ratios or price-to-income ratios generally fail to reflect accurately the state of housing costs. To the eyes of analysts employing such measures, housing markets can appear "exuberant" even when houses are in fact reasonably priced. We construct a measure for evaluating the cost of home owning that is standard for economists—the imputed annual rental cost of owning a home, a variant of the user cost of housing”— Assessing High House Prices: Bubbles, Fundamentals and Misperceptions
“How does one tell when rapid growth in house prices is caused by fundamental factors of supply and demand and when it is an unsustainable bubble?”— Assessing High House Prices: Bubbles, Fundamentals and Misperceptions
“Chris Mayer and Todd Sinai, “Bubble Trouble? Not Likely,” Wall Street Journal, September 19, 2005, https://www.wsj.com/articles/SB112708454245544394.”— We Built Reality: How Social Science Infiltrated Culture, Politics, and Power
How It Spread

Academic journals spread the no-bubble view in the mid-2000s. Papers in Brookings and NBER reached economists. They critiqued bubble warnings with rent-based models. Citations built consensus. [2][3][4][5][6][7][8]

Media outlets amplified expert denials. The Wall Street Journal published op-eds calling skeptics alarmists. This reassured buyers and investors. Bubble alerts in Barron's and The New York Times got less traction. [1][2][9]

Policy networks disseminated the idea through Fed reports and university centers. Non-technical summaries made it accessible. Economists cited these works in debates. The narrative held until prices fell. [3][6][8]

Op-eds and forecasts reinforced the assumption. Elite publications lent prestige. Dissenters faced pushback. The view dominated discussions by 2006. [1][7]

▶ Supporting Quotes (14)
“wrote in 2005 in the Wall Street Journal that “economic logic” established the nonexistence of the bubble”— We Built Reality: How Social Science Infiltrated Culture, Politics, and Power
“Researchers often focus on a single specific aspect of this general concept: rapidly rising prices, unrealistic expectations of future price increases, the departure of prices from fundamental value, or a large drop in prices after the bubble pops.”— Bubble, Bubble, Where’s the Housing Bubble?
“Many knowledgeable observers believe that the United States is in the midst of a speculative bubble in residential real estate prices that rivals the dot-com bubble of the 1990s and that will have a similarly unhappy conclusion.”— Bubble, Bubble, Where’s the Housing Bubble?
“NBER Working Paper No. 11643.”— Assessing High House Prices: Bubbles, Fundamentals and Misperceptions
“A shorter version of this paper is forthcoming in the Fall, 2005 Journal of Economic Perspectives.”— Assessing High House Prices: Bubbles, Fundamentals and Misperceptions
“Suggested Citation Margaret Hwang Smith & Gary Smith, 2006. "Bubble, Bubble, Where's the Housing Bubble?," Brookings Papers on Economic Activity”— Bubble, Bubble, Where’s the Housing Bubble?
“Charles Himmelberg & Christopher Mayer & Todd Sinai, 2005. "Assessing High House Prices: Bubbles, Fundamentals and Misperceptions," Journal of Economic Perspectives”— Bubble, Bubble, Where’s the Housing Bubble?
“Journal of Economic Perspectives 19 (4): 67–92 . DOI: 10.1257/089533005775196769”— Assessing High House Prices: Bubbles, Fundamentals and Misperceptions
“Published Versions Himmelberg, Charles, Christopher Mayer and Todd Sinai. "Assessing High House Prices: Bubbles, Fundamentals and Misperceptions," Journal of Economic Perspectives, 2005, v19(4,Fall), 67-92.”— Assessing High House Prices: Bubbles, Fundamentals, and Misperceptions
“Non-Technical Summaries Is There a Housing Bubble?”— Assessing High House Prices: Bubbles, Fundamentals, and Misperceptions
“Many knowledgeable observers believe that the United States is in the midst of a speculative bubble in residential real estate prices that rivals the dot-com bubble of the 1990s and that will have a similarly unhappy conclusion.”— Bubble, Bubble, Where's the Housing Bubble? | Brookings
“In this paper, we explain how to assess the state of house prices—both whether there is a bubble and what underlying factors support housing demand—in a way that is grounded in economic theory. In doing so, we correct four common fallacies about the costliness of the housing market.”— Assessing High House Prices: Bubbles, Fundamentals and Misperceptions
“As of the end of 2004, our analysis reveals little evidence of a housing bubble.”— Assessing High House Prices: Bubbles, Fundamentals and Misperceptions
“Chris Mayer and Todd Sinai, “Bubble Trouble? Not Likely,” Wall Street Journal, September 19, 2005, https://www.wsj.com/articles/SB112708454245544394.”— We Built Reality: How Social Science Infiltrated Culture, Politics, and Power
Resulting Policies

The Federal Reserve kept interest rates low into 2006. Economists treated this as a fundamental supporting high prices. Their analyses aligned with Fed policy. No adjustments came for bubble risks. [6]

Policymakers downplayed warnings based on academic views. Studies denying overvaluation influenced decisions. This delayed regulatory action. The crash followed. [1]

▶ Supporting Quotes (2)
“Because real, long-term interest rates are currently so low, housing costs are more sensitive to changes in real, long-term interest”— Assessing High House Prices: Bubbles, Fundamentals, and Misperceptions
“Daniel Hirschman and Elizabeth Popp Berman, “Do Economists Make Policies? On the Political Effects of Economics,” Socio-Economic Review 12 (2014): 781.”— We Built Reality: How Social Science Infiltrated Culture, Politics, and Power
Harm Caused

The 2008 crash erased billions in real estate wealth. Families faced foreclosures. Financial security vanished for many. Social despair grew and fed populism. [1]

Policy inaction worsened the recession. Denials contributed to complacency. Massive job losses ensued. Earlier overvaluations in the 1980s had hinted at risks, but lessons went unheeded. [2][3][6]

▶ Supporting Quotes (2)
“When the housing market finally crashed, vaporizing billions in real estate wealth, many ordinary Americans were forced to abandon not only their homes but also their feelings of financial security and self-worth. Indeed, many who experienced this loss had by 2016 slipped into a dark rage and social despair.”— We Built Reality: How Social Science Infiltrated Culture, Politics, and Power
“During the late 1980s, our metrics indicate that house prices in many cities were, in fact, overvalued (e.g., Boston, Los Angeles, New York, and San Francisco), and prices in these cities subsequently fell.”— Assessing High House Prices: Bubbles, Fundamentals and Misperceptions
Downfall

Housing prices peaked in 2006. They crashed through 2009. Values fell below rental fundamentals. This exposed the no-bubble claims as false. [1][2][6]

A 2009 paper by David Colander and others highlighted economics' failures. It pointed to the crisis as proof of flawed assumptions. The field faced scrutiny. [1][10]

▶ Supporting Quotes (3)
“Before the housing bubble exploded in 2008—helping generate the largest financial crisis in a generation”— We Built Reality: How Social Science Infiltrated Culture, Politics, and Power
“During the 1980s, our measures show that houses looked most overvalued in many of the same cities that subsequently experienced the largest house price declines.”— Assessing High House Prices: Bubbles, Fundamentals, and Misperceptions
“David Colander, Hans Föllmer, Armin Haas, Michael D. Goldberg, Katrina Juselius, Alan Kirman, Thomas Lux, and Birgitte Sloth, “The Financial Crisis and the Systematic Failure of Academic Economics,” University of Copenhagen Department of Economics Discussion Paper No. 09-03 (March 9, 2009), https://papers.ssrn.com/sol3/papers.cfm?abstract_id=1355882.”— We Built Reality: How Social Science Infiltrated Culture, Politics, and Power
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