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The Returns to Microenterprise Support among the Ultrapoor: A Field Experiment in Postwar Uganda

By Christopher Blattman, Eric P. Green, Julian Jamison, M. Christian Lehmann, and Jeannie Annan

American Economic Journal: Applied Economics, April 2016

We show that extremely poor, war-affected women in northern Uganda have high returns to a package of $150 cash, five days of business skills training, and ongoing supervision. Sixteen months after grants, participants doubled their microenterprise ownersh...

The Capital Asset Pricing Model

[Symposium: Fortieth Anniversary of CAPM]

By André F. Perold

Journal of Economic Perspectives, Summer 2004

The Capital Asset Pricing Model (CAPM) revolutionized modern finance. Developed in the early 1960s by William Sharpe, Jack Treynor, John Lintner and Jan Mossin, the model provided the first coherent framework for relating the required return on an investm...

Gasoline Taxes and Consumer Behavior

By Shanjun Li, Joshua Linn, and Erich Muehlegger

American Economic Journal: Economic Policy, November 2014

Gasoline taxes can be employed to correct externalities from automobile use and to raise government revenue. Our understanding of the optimal gasoline tax and the efficacy of existing taxes is largely based on empirical analysis of consumer responses to g...

How Government Statistics Adjust for Potential Biases from Quality Change and New Goods in an Age of Digital Technologies: A View from the Trenches

[Symposium: Are Measures of Economic Growth Biased?]

By Erica L. Groshen, Brian C. Moyer, Ana M. Aizcorbe, Ralph Bradley, and David M. Friedman

Journal of Economic Perspectives, Spring 2017

A key economic indicator is real output. To get this right, we need to measure accurately both the value of nominal GDP (done by Bureau of Economic Analaysis) and key price indexes (done mostly by Bureau of Labor Statisticcs). All of us have worked on the...