Liangliang Jiang, Ross Levine, Chen Lin, 20 May 2016

By creating liquidity, banks improve the allocation of capital and accelerate economic growth. This column uses evidence from US banks between 1984 and 2006 to evaluate the impact of competition amongst banks on their liquidity creation. It finds that an intensification of competition in the banking industry materially reduces liquidity creation. Furthermore, the evidence suggests that more profitable banks experience a smaller reduction in liquidity creation because of their ability to better absorb risk. Similarly, an intensification of competition reduces liquidity creation more among small banks, who are more engaged in relationship lending.

Kevin Rinz, Daniel Hungerman, 15 May 2016

In the last decade, US states have created dozens of large-scale programmes that use public resources to subsidise attendance at private schools, but there is disagreement over who benefits from these subsidies. This column estimates the effects of the programmes on school revenue and enrolment. The programmes increase revenue, but the mechanism depends on the design. In programmes with restricted eligibility the subsidies reach families and increase enrolment, whereas in unrestricted programmes the subsidies flow to schools and increase revenue per student. 

Santiago Caicedo, Robert E. Lucas, Jr., Esteban Rossi-Hansberg , 14 May 2016

A large part of people’s wages rewards the knowledge embedded in them that they use in a production endeavour. Knowledgeable individuals specialise in hard, complicated tasks, while less knowledgeable ones specialise in simpler, more common tasks. This column uses a dynamic model of knowledge accumulation over time and career paths to find an underlying cause for wage inequality in the US over the last few decades. A good explanation for the wage inequality is the discrepancy between the rate of technological change and the rate at which the distribution of knowledge catches up.

Alex Cukierman, 19 April 2016

Following the collapse of Lehman Brothers, there was a fall in growth rates of net banking credit and total net new bond issues. This column discusses these events in detail. It also suggests that the decrease in credit was mainly due to supply shrinkage. The persistence of credit arrest beyond the two years following Lehman’s collapse is due to gradual enactment of tougher banking regulations along with growing awareness of low bailout probabilities. 

Eva Arceo, Rema Hanna, Paulina Oliva, 16 April 2016

Pollution levels are orders of magnitude higher in lower-income countries than in the developed world. This means that studies of the health effects of pollution based on data from the latter will not necessarily be relevant to the former. This column reports on the effect of air pollution on infant mortality in Mexico City. Significant effects are found that are much larger than found in earlier work based on US data. These findings highlight the potential pitfalls of naively extrapolating findings from high-income to developing countries.

Alex Cukierman, 16 April 2016

Both the US and the Eurozone reacted to the Global Crisis by injecting liquidity and loosening monetary policy. This column argues that despite the similarities in the behaviour of bank credit, the behaviour of bank reserves has been quite different. In particular, while US bank reserves have been on an uninterrupted upward trend since Lehman’s collapse, EZ bank reserves have fluctuated markedly in both directions. At the source, this is due to differences in the liquidity injections procedures between the Eurozone and the Fed.

Alex Cukierman, 30 March 2016

The quantity theory of money implies that sustained inflation requires a sustained increase in the money supply. It does not, however, imply that the reverse is also true. This column explores and illustrates this issue by comparing inflation in the US following the collapse of Lehman Brothers with Germany’s hyperinflation experience after WWI. A key factor explaining the vastly different inflation experiences is how the monetary expansion translated into demand. The Fed’s base expansion did not translate into demand for goods and services, whereas the German monetary expansion was motivated by the government’s hunger for seigniorage revenues.

Ryan A. Decker, John Haltiwanger, Ron Jarmin, Javier Miranda, 19 March 2016

Recent evidence suggests that transformational entrepreneurial firms – those that introduce major innovations and make substantial contributions to growth – have been in decline. This column uses US micro data to explore the behaviour of high-growth young firms between 1980 and 2010. A decline in young firm activity in the 1980s and 1990s was dominated by young firms in the retail trade sector. In the post-2000 period, in contrast, a sharp decline in high-growth young businesses in key innovative sectors like high tech suggests there has been a decline in transformational entrepreneurs in this sector. 

Evangelos Benos, Richard Payne, Michalis Vasios, 25 February 2016

Since the Global Crisis, a key ingredient of reforms has been to force over-the-counter contracts to be traded in more transparent exchange-like settings. The aim has been to reduce the cost of trading such instruments and make markets more resilient. This column analyses the impact of the Dodd-Frank Act in the US on the market for vanilla interest rate swaps. The introduction of swap execution facilities trading is associated with a significant improvement in swap market liquidity. This suggests that Europe may see similar benefits from centralising swap trading, though it remains to be seen how these markets will operate in more volatile times.

Di Gong, Harry Huizinga, Luc Laeven, 18 February 2016

Prior to the Global Crisis, banks could easily use off-balance sheet structures to lower their effective capitalisation rates. This column examines another way that US banks circumvented capital regulations – by maintaining minority-owned, non-consolidated subsidiaries. Had these subsidiaries been consolidated, average reported equity-to-assets ratios would have been 3.5% lower. These findings suggest that some US banks were actively misrepresenting the riskiness of their assets prior to the crisis.

Gerben Bakker, Nicholas Crafts, Pieter Woltjer, 05 February 2016

The Great Depression is considered one of the darkest times for the US economy, but some argue that the US economy experienced strong productivity growth over the period. This column reassesses this performance using improved measures of total factor productivity that allow for comparisons of productivity growth in the Depression era and in later decades. Contrary to Alvin Hansen’s gloomy prognosis of secular stagnation, the US economy was in a very strong position during the 1930s by today’s standards.

Michael Kremer, Christopher Snyder, Natalia Drozdoff, 29 January 2016

Many observers believe that pharmaceutical firms prefer to invest in drugs to treat diseases rather than vaccines. This column presents an economic rationale for why such a pattern may emerge for diseases like HIV/AIDS. The population risk of such diseases resembles a Zipf distribution, which makes the shape of the demand curve for a drug more conducive to revenue extraction than for a vaccine. Based on revenue calibrations using US data on HIV risk, the revenue from a drug is about four times greater.

Luis Brandao-Marques, Gaston Gelos, 18 January 2016

Concerns about both the level of bond market liquidity and its fragility have risen lately, prompted partly by events such as the October 2014 Treasury bond flash rally in the US, or the April 2015 Bund tantrum in Europe. This column assesses current market liquidity and resilience, discerning several key policy recommendations from the evidence.

Janet Currie, 15 January 2016

Studies of the effects of economic fluctuations on health have come to wildly different conclusions. This may be because the effects are different for different groups. Using US data, this column looks at the health consequences of the Great Recession on mothers, a sub-population that has thus far been largely neglected in the literature. Increases in unemployment are found to have large negative health effects and to increase incidences of smoking and substance abuse among mothers. These effects appear to be concentrated on disadvantaged groups such as minorities, and point to short- and long-term consequences for their children.

Pablo Fajgelbaum, Eduardo Morales, Juan Carlos Suarez, Owen Zidar, 06 January 2016

Tax policy varies widely across countries and across regions within countries. This column presents evidence suggesting that in the case of the US, harmonising tax rates could lead to significant increases in aggregate economic output. EU policymakers should take note.

Scott Ross Baker, Nicholas Bloom, Steven J. Davis, 15 December 2015

The recent influx of refugees to Europe has stoked security fears and created anxiety about the social and economic consequences. This column provides new quantitative indicators for the intensity of migration-related fears and policy uncertainty, based on newspaper articles. The indices are presented for the US, UK, France, and Germany, and extend back to 1995. They show that recent levels of concern and uncertainty in European countries about migration are unprecedented. 

Sari Pekkala Kerr, William Kerr, 12 December 2015

The globalisation of innovation is proceeding at a fast pace. This column argues that the ethnic composition of a firm’s US-based inventive work force is an important factor in whether the firm engages in international collaborations. Collaborative patents are often utilised when a US public company is entering into a new foreign region for innovative work. This is especially notable in markets with weak intellectual property protections.

Stefano Breschi, Francesco Lissoni, Ernest Miguelez, 07 December 2015

We traditionally think of migrants draining their home country of knowledge and skills, and, instead, giving their all to their host country. Based on patent and inventor data, this column looks at knowledge diffusion conveyed by highly skilled migrants both within their host country as well as back to their homelands. China, South Korea and Russia seem to profit from their diaspora’s knowledge generation but the same can’t be said for India.

Nikolaos I. Papanikolaou, Christian C. P. Wolff, 06 December 2015

In the years running up to the global crisis, the banking sector was marked by a high degree of leverage. Using US data, this column shows how, before the onset of the crisis, banks accumulated leverage both on and, especially, off their balance sheets. The latter activities saw an increase in maturity mismatch, raised the probability of bank runs, and increased both individual bank risk and systemic risk. These findings support the imposition of an explicit off-balance sheet leverage ratio in future regulatory frameworks.

Andrew Foote, Michel Grosz, Ann Huff Stevens, 17 November 2015

In light of the Great Recession, we continue to learn new ways in which economic downturns directly affect the labour market. This column suggests that following an adverse demand shock, individuals exit local labour markets primarily through migration, but that has become less prominent in the Great Recession. Faced with declining economic prospects, workers are becoming more likely to stay put, without re-entering the labour market.