Economic Letter

An analysis shows that the Federal Reserve’s large-scale asset purchases have been effective at reducing the economic costs of the zero lower bound on interest rates. Model simulations indicate that, by 2012, the past and projected expansion of the Fed’s securities holdings since late 2008 will lower the unemployment rate by 1½ percentage points relative to what it would have been absent the purchases. The asset purchases also have probably prevented the U.S. economy from falling into deflation.

The U.S. economic recovery has been weak, especially in employment growth. A microeconomic analysis of U.S. counties shows that this weakness is closely related to elevated levels of household debt accumulated during the housing boom. Counties where household debt grew moderately from 2002 to 2006 have seen a moderation of employment losses and a robust recovery in durable consumption and residential investment. By contrast, counties that experienced large increases in household debt during the boom have been mired in a severe recessionary environment even after the official end of the recession.

In the years since the bursting of the housing bubble, the personal saving rate has trended up from around 1% to around 6%, while the ratio of household debt to disposable income has dropped from 130% to 118%. Changes over time in the availability of credit to households can explain 90% of the variance of the saving rate since the mid-1960s, including the recent uptrend, according to a simple empirical model.

Mortgage lenders impose a default premium on the loans they originate to compensate for the possibility that borrowers won’t make payments. The housing boom of the 2000s was characterized by increasing riskiness of the borrowers approved for mortgages and the structures of the loans themselves. Despite these changes in risk, a pricing model can justify the spreads contained in mortgages made during this period based on what at the time seemed to be reasonable expectations for house price appreciation. Contrary to those expectations, prices fell dramatically.

Financial reform legislation passed by Congress in 2010 requires mortgage originators to retain some loss exposure on the mortgages they securitize. Recent research compares the performance of mortgage-backed securities for different types of issues in which originators retain different degrees of loss exposure. The findings suggest that retention of even modest loss exposure by originators reduces moral hazard and is associated with significantly lower loss rates on these securities.

In recent months, inflation as measured by the personal consumption expenditures price index has been trending lower. This slowdown, known as disinflation, has raised concerns that inflation might actually drop below zero and enter a period of deflation. An examination of the distribution of inflation rates across the range of goods and services that compose the index suggests that downward pressures on inflation are relatively high by historical standards.

The idea that business cycle fluctuations may stem partly from changes in consumer and business confidence is controversial. One way to test the idea is to use professional economic forecasts to measure confidence at specific points in time and correlate the results with future economic activity. Such an analysis suggests that changes in expectations regarding future economic performance are important drivers of economic fluctuations. Moreover, periods of heightened optimism are followed by a tightening of monetary policy.

An increase in U.S. aggregate labor demand reflected in rising job vacancies has not been accompanied by a similar decline in the unemployment rate. Some analysts maintain that unemployed workers lack the skills to fill available jobs, a mismatch that contributes to an elevated level of structural unemployment. However, analysis of data on employment growth and jobless rates across industries, occupations, and states suggests only a limited increase in structural unemployment, indicating that cyclical factors account for most of the rise in the unemployment rate.

Greece’s enormous fiscal deficit and high debt level culminated earlier this year in the euro zone’s first sovereign debt crisis. High yields on Greece’s debt indicate that markets have priced in the possibility of default. Compared with Argentina, which defaulted on its debt in 2001, Greece’s fiscal position is much worse. However, unlike Argentina, Greece is supported by other euro zone countries and is not vulnerable to speculative currency attacks, advantages that offer it some protection from default.

The low level of inflation and the sluggish pace of economic recovery have raised concerns about sustained deflation—an inflation rate below zero with a general fall in prices. However, the relative prices of inflation-indexed and non-indexed Treasury bonds, which historically have proven to be good measures of inflation expectations, suggest that financial market participants consider the probability of deflation to be low.