Economic Letter

In the six decades following World War II, bank lending measured as a ratio to GDP has quadrupled in advanced economies. To a great extent, this unprecedented expansion of credit was driven by a dramatic growth in mortgage loans. Lending backed by real estate has allowed households to leverage up and has changed the traditional business of banking in fundamental ways. This “Great Mortgaging” has had a profound influence on the dynamics of business cycles.

The U.S. economy is likely to reach the Federal Reserve’s maximum employment goal later this year. Although inflation has remained persistently low, it is expected to return to the Fed’s 2% target over the next few years. Due to the lags between monetary policy’s implementation and its effects, the time is coming to take the first step toward normalizing monetary policy by raising short-term interest rates. The following is adapted from a presentation by the president and CEO of the Federal Reserve Bank of San Francisco to the CFA Society Hawaii on March 5, 2015.

Place-based policies such as enterprise zones offer economic incentives to firms to create jobs in economically challenged areas. Evidence on the effectiveness of enterprise zones is mixed. There is no clear indication that they successfully create jobs. However, positive effects are evident for other policies, including discretionary subsidies that target specific firms, infrastructure spending that targets specific areas, and investment in higher education and university research.

State and local governments frequently offer tax incentives to attract businesses to locate in their area. Proponents view these incentives as a valuable tool to encourage economic development. Critics, on the other hand, argue either that incentives have little effect on business location decisions—and hence are wasteful giveaways—or that their benefits come at the expense of reduced economic activity in other areas. A key element in this debate is distinguishing what is best from a local versus a national perspective.

Animal spirits are often suggested as a cause of business cycles, but they are very difficult to define. Recent research proposes a novel explanation based on the changing level of risk over time and people’s uncertainty about how the world works. The interaction of these two can lead to significant business cycle fluctuations in response to spikes in volatility. This finding gives researchers an alternative to irrational behavior as an explanation for why swings in consumer sentiment appear to drive the business cycle.

Since 2007, Federal Open Market Committee participants have been persistently too optimistic about future U.S. economic growth. Real GDP growth forecasts have typically started high, but then are revised down over time as the incoming data continue to disappoint. Possible explanations for this pattern include missed warning signals about the buildup of imbalances before the crisis, overestimation of the efficacy of monetary policy following a balance-sheet recession, and the natural tendency of forecasters to extrapolate from recent data.

The earnings gap between people with a college degree and those with no education beyond high school has been growing since the late 1970s. Since 2000, however, the gap has grown more for those who have earned a post-graduate degree as well. The divergence between workers with college degrees and those with graduate degrees may be one manifestation of rising labor market polarization, which benefits those earning the highest and the lowest wages relatively more than those in the middle of the wage distribution.

The retirement of the baby boomers is expected to severely cut U.S. stock values in the near future. Since population aging is widespread across the world’s largest countries, this raises the question of whether global aging could adversely affect the U.S. equity market even further. However, the strong relationship between demographics and equity values in this country do not hold true in other industrial countries. This suggests that global aging is unlikely to create additional headwinds for U.S. equities.