There has been much discussion about eliminating the 'zero lower bound' by eliminating paper currency. But such a radical and difficult approach as eliminating paper currency is not necessary. Much as during the Great Depression-when countries were able to revive their economies by going off the...

The South Asia region is both a large contributor to climate change and also one of the regions most vulnerable to climate change. This paper provides an overview of the region's vulnerabilities, national committments to mitigate emissions, and national policies to adapt to a changing climate....

This paper studies the impact of U.S. immigration barriers on global knowledge production. We present four key findings. First, among Nobel Prize winners and Fields Medalists, migrants to the U.S. play a central role in the global knowledge network-representing 20-33% of the frontier knowledge...

To examine the drivers of innovation, this paper studies the global R and D effort to fight the deadliest diseases and presents four results. We find: (1) global pharmaceutical R and D activity-measured by clinical trials-typically follows the 'law of diminishing effort': id est the elasticity...

Firms in the S and P 500 often announce layoffs within days of one another, despite the fact that the average S and P 500 constituent announces layoffs once every 5 years. By contrast, similarsized privately-held firms do not behave in this way. This paper provides empirical evidence that such...

The experience of the Great Recession and its aftermath revealed that a lower bound on interest rates can be a serious obstacle for fighting recessions. However, the zero lower bound is not a law of nature; it is a policy choice. The central message of this paper is that with readily available...

The advancement of the knowledge frontier is crucial for technological innovation and human progress. Using novel data from the setting of mathematics, this paper establishes two results. First, we document that individuals who demonstrate exceptional talent in their teenage years have an...