Skip to main content

National Bureau of Economic Research

Conducting and disseminating nonpartisan economic research

Latest from the NBER

A research summary from the monthly NBER Digest

The Effect of the Fed’s Quantitative Easing on Bank Lending Figure

The Effect of the Fed’s Quantitative Easing on Bank Lending

article

Banks face a tradeoff between lending out as many of their assets as possible to maximize interest revenue and keeping enough liquid assets on hand to stave off potential bank runs. Since a run on a specific bank can lead to broader financial contagion, governments typically intervene to constrain banks’ behavior through instruments like leverage ratio regulations. These regulations involve restrictions on the ratio of a bank’s Tier 1 capital — its shareholders’ equity and retained earnings — to its total assets.

In response to the financial crisis of 2007–08, the Federal Reserve’s multitrillion dollar quantitative easing program used central bank reserves — liquid assets that must be held within the banking system — to purchase assets from outside…

From the NBER Reporter: Research, program, and conference summaries

The Role of Women’s Employment in Recent Recessions Figure

The Role of Women’s Employment in Recent Recessions

article

The pandemic recession of 2020 was unusual not only for its cause and severity, but also for the disproportional impact that it had on women’s employment.

Figure 1 displays the difference between the increases in women’s and men’s unemployment for all US recessions since 1949. In most recessions, this difference is either close to zero or negative, indicating that men experienced a sharper rise in unemployment than women. In the Great Recession of 2007–09, for example, men’s unemployment increased by about 2 percentage points more than women’s. In contrast, in the pandemic recession of 2020 women experienced a sharper rise in unemployment. The gap between the increase in women’s and men’s unemployment is almost 3 percentage points, which is larger in absolute value…

From the NBER Bulletin on Health

 Drinking Water Contamination, Even at Low Levels, Affects Birth Outcomes

Drinking Water Contamination, Even at Low Levels, Affects Birth Outcomes

article

The Safe Drinking Water Act regulates over 90 contaminants — such as lead and arsenic — in community water systems. These regulations establish maximum contaminant levels (MCLs) for each contaminant; levels that exceed MCLs are considered violations. However, even among water systems that meet regulatory standards, the levels of contaminants can vary. In Drinking Water Contaminant Concentrations and Birth Outcomes (NBER Working Paper 31567), researchers Richard DiSalvo and Elaine L. Hill show that elevated levels of contaminants — even in communities where the concentrations are compliant with regulations — adversely affect birth…

From the NBER Bulletin on Retirement and Disability

Inter-state Variation in Disability Applications during the Pandemic figure

Inter-state Variation in Disability Applications during the Pandemic

article

The COVID-19 pandemic and its associated health and economic burdens have unfolded quite differently across states in the US. These differences are due to a variety of factors, including population density, socioeconomic status, health, and state policies. Variation across states in the timing and magnitude of the pandemic as well as in state characteristics and policies may have affected the dynamics of federal disability applications during this period.

In Inter-State Variation in Disability Applications During the COVID-19 Pandemic (NBER RDRC Working Paper 22-02), researchers Pinka Chatterji, Yiran Han, Kajal Lahiri, Jinman Pang, and Yimeng Yin examine inter-state differences in the monthly dynamics of disability applications after the onset...

From the NBER Bulletin on Entrepreneurship

Striking a Balance between Entrepreneurs and Investors figure

Striking a Balance between Entrepreneurs and Investors

article

In Do Entrepreneurs Want Control? And Should They Get What They Want? A Historical and Theoretical Exploration (NBER Working Paper 31106), Naomi R. Lamoreaux and Jean-Laurent Rosenthal develop a model of startup financing in which founders and outside investors compete for control of the firm. They apply their framework to study how companies’ outcomes, in particular subsequent innovations, are influenced by which group has the upper hand.

The researchers find that no simple corporate governance rule fits all circumstances. Entrepreneurs want a company to fund their vision of continued technological development. Investors want to earn favorable returns on the funds they invest in an entrepreneur’s project. Because entrepreneurs can personally gain...

Featured Working Papers

A year-long program in Nigeria contrasting single-skill math sessions with sessions alternating among various skills produced short-term gains for the alternating-skills approach but no evidence of improved long-term retention, Lotte van der HaarGuthrie Gray-LobeMichael Kremer, and Joost de Laat report.

In contrast to prevailing wisdom, Robert E. Hall and Marianna Kudlyak argue that the natural rate of unemployment varies over the business cycle.  They further suggest that the flat Phillips curve is an illusion, a result of assuming that the natural rate of unemployment has little or no movement during recoveries.

Using 2010 Census data, Bruce D. MeyerAngela Wyse, and Ilina Logani find that nonelderly homeless people have 3.5 times the mortality risk of those who are housed.  A 40-year-old homeless person faces a similar mortality risk to a housed person nearly 20 years older.

Over the last 15 years, returns on traded options have converged to those on synthetic options and the variance risk premium has fallen towards zero, while various drivers of the cost and risk of hedging options exposures have declined, consistent with a model in which intermediaries drive option prices, Ian Dew-Becker and Stefano Giglio find.

A study by Robert J. Barro and Francesco Bianchi finds that nearly half of effective government financing in the OECD in 2020–22 came from unexpected inflation’s effect in reducing the real value of outstanding public debt, rather than from traditional public finance. 

View all

Books & Chapters

Through a partnership with the University of Chicago Press, the NBER publishes the proceedings of four annual conferences as well as other research studies associated with NBER-based research projects.

Research Spotlights

NBER researchers discuss their work on subjects of wide interest to economists, policymakers, and the general public. Recordings of more-detailed presentations, keynote addresses, and panel discussions at NBER conferences are available on the Lectures page.
Research Spotlight
An investigation of the role of anonymity in online communication and social media posting.    ...
Research Spotlight
In recognition of Black History Month, Research Associate Conrad Miller of the University of California, Berkeley,...
Research Spotlight
In recognition of Black History Month, Research Associate Trevon Logan of The Ohio State University, who directs the...
Research Spotlight
A growing fraction of US medical care is delivered through integrated healthcare systems that include many medical...
Sign-Up for New This Week: The Weekly Announcement of New NBER Working Papers
Learn More about NBER Research Activities