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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...

The Failure Mechanics of Dealer Banks

[Symposium: Financial Plumbing]

By Darrell Duffie

Journal of Economic Perspectives, Winter 2010

During the recent financial crisis, major dealer banks -- that is, banks that intermediate markets for securities and derivatives -- suffered from new forms of bank runs. The most vivid examples are the 2008 failures of Bear Stearns and Lehman Brothers. D...

Liquidity: A New Monetarist Perspective

By Ricardo Lagos, Guillaume Rocheteau, and Randall Wright

Journal of Economic Literature, June 2017

This essay surveys the new monetarist approach to liquidity. Work in this literature strives for empirical and policy relevance, plus rigorous foundations. Questions include: What is liquidity? Is money essential in achieving desirable outcomes? Which obj...

The Economics of Fair Trade

By Raluca Dragusanu, Daniele Giovannucci, and Nathan Nunn

Journal of Economic Perspectives, Summer 2014

Fair Trade is a labeling initiative aimed at improving the lives of the poor in developing countries by offering better terms to producers and helping them to organize. Although Fair Trade-certified products still comprise a small share of the market&mdas...