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The Levitt Lens

Unconventional Economics: Exploring the data-driven insights of a distinguished economist.

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Biographical Sketch

Personal Details

Steven David Levitt, born May 29, 1967, is a prominent American economist renowned for his unconventional approach to economic analysis. He is celebrated for his ability to apply economic principles to a wide array of social phenomena, often uncovering surprising correlations and causal links.

Academic Foundation

Levitt earned his Bachelor of Arts in Economics summa cum laude from Harvard University in 1989. He further honed his analytical skills at the Massachusetts Institute of Technology (MIT), where he obtained his PhD in Economics in 1994. His doctoral thesis focused on rational bubbles in horse breeding, showcasing an early interest in non-traditional economic subjects.

Recognition

His significant contributions to the field of economics, particularly his work on crime, were recognized in 2003 when he was awarded the prestigious John Bates Clark Medal. This award is given biennially by the American Economic Association to the most promising American economist under the age of 40, signifying his early impact and potential.

Academic and Professional Journey

University Affiliations

Currently, Levitt holds the position of William B. Ogden Distinguished Service Professor of Economics at the University of Chicago. He also directs the Center for Radical Innovation for Social Change at the same institution, fostering new approaches to data science and social issues.

Editorial and Consulting Roles

His academic influence extends to his tenure as co-editor of the Journal of Political Economy until December 2007. In 2009, he co-founded TGG Group, a consulting firm focused on business and philanthropy, leveraging his analytical expertise for practical applications.

Public Acclaim

Levitt's ability to communicate complex economic ideas to a broad audience gained significant traction. He was recognized by Time magazine in 2006 as one of the "100 People Who Shape Our World." Furthermore, a 2011 survey ranked him among the top five favorite living economists under 60, highlighting his standing among peers.

Areas of Scholarly Inquiry

Crime and Economics

Levitt's research has extensively explored the economic underpinnings of crime. His work includes analyzing the financial structures of drug-selling gangs and investigating the impact of law enforcement strategies on crime rates. He has published over 60 academic papers across various economic domains.

Behavioral and Social Phenomena

Beyond crime, Levitt has applied economic reasoning to diverse topics such as the influence of names on life outcomes, the economics of sports (like sumo wrestling and penalty kicks), and the impact of incentives on behavior. His approach often challenges conventional wisdom by focusing on empirical data and rigorous statistical analysis.

Key Methodologies

A hallmark of Levitt's work is his innovative use of data and quasi-experimental methods to identify causal relationships. He often seeks out unique datasets and natural experiments to test economic theories in real-world settings, moving beyond traditional theoretical models.

The Abortion-Crime Debate

Groundbreaking Hypothesis

Levitt, in collaboration with John J. Donohue III, published a highly influential and controversial paper in 2001 titled "The Impact of Legalized Abortion on Crime." The study posited that the legalization of abortion in 1973 could account for a substantial portion of the subsequent decline in crime rates observed approximately 18 years later.

The core argument suggests that unwanted pregnancies, which were more likely to occur among disadvantaged populations, would have led to higher crime rates if carried to term. Legalized abortion, by reducing the number of such births, indirectly lowered crime. The authors estimated that legalized abortion could explain up to half of the crime reduction in the 1990s.

Criticisms and Rebuttals: The paper faced significant criticism, with some economists like Theodore Joyce and later Christopher Foote and Christopher Goetz arguing that the results were sensitive to statistical methods and potentially flawed. Levitt and Donohue responded to these critiques, acknowledging statistical errors in their initial paper but maintaining that the core finding of a link between legalized abortion and reduced crime remained statistically significant, albeit potentially weaker.

Later Reaffirmation: In a 2019 paper, Levitt and Donohue reviewed their original predictions and concluded that the effects held up, estimating that crime fell by roughly 20% between 1997 and 2014 due to legalized abortion, accounting for a substantial part of the overall crime decline.

Perspectives on Policy

Financial Policy

Levitt has expressed strong opinions on financial policies, notably stating his dislike for the "too big to fail" concept, suggesting it creates moral hazard and systemic risks within the financial sector.

Environmental Economics

He is a proponent of a carbon tax as an economically efficient mechanism to address climate change. Levitt views it as a straightforward and obvious policy solution supported by the consensus of most economists.

Influential Publications

Freakonomics Series

Levitt co-authored the international bestseller Freakonomics (2005) with Stephen J. Dubner. This book, along with its sequels SuperFreakonomics (2009), Think Like a Freak (2014), and When to Rob a Bank (2015), popularized his distinctive approach to economics, examining the hidden incentives and data behind everyday life.

  • Freakonomics: A Rogue Economist Explores the Hidden Side of Everything (with Stephen Dubner, 2005)
  • SuperFreakonomics: Global Cooling, Patriotic Prostitutes, and Why Suicide Bombers Should Buy Life Insurance (with Stephen Dubner, 2009)
  • Think Like a Freak: The Authors of Freakonomics Offer to Retrain Your Brain (with Stephen Dubner, 2014)
  • When to Rob a Bank: ...And 131 More Warped Suggestions and Well-Intended Rants (with Stephen Dubner, 2015)

Distinctions and Honors

John Bates Clark Medal

Awarded in 2003, this medal is a significant recognition within the economics profession, signifying Levitt's status as one of the leading young economists in the United States at the time of its conferral.

Time 100

His inclusion in Time magazine's list of "100 People Who Shape Our World" in 2006 underscores his broader cultural impact and recognition beyond academic circles.

Peer Recognition

Ranked as the fourth favorite living economist under 60 by economics professors in a 2011 survey, reflecting high regard from his academic peers.

Scholarly Contributions

Academic Publications

Levitt has authored or co-authored numerous influential academic papers. His research spans diverse areas, employing rigorous empirical methods.

  • "Using Repeat Challengers to Estimate the Effect of Campaign Spending on Election Outcomes in the U.S. House." (1994)
  • "The Effect of Prison Population Size on Crime Rates: Evidence from Prison Overcrowding Litigation." (1996)
  • "Measuring Positive Externalities from Unobservable Victim Precaution: An Empirical Analysis of Lojack." (with Ian Ayres, 1998)
  • "An Economic Analysis of a Drug-Selling Gang's Finances." (with Sudhir A. Venkatesh, 2000)
  • "The Impact of Legalized Abortion on Crime." (with John J. Donohue III, 2001)
  • "The Causes and Consequences of Distinctively Black Names." (with Roland G. Fryer Jr., 2004)
  • "Understanding Why Crime Fell in the 1990s: Four Factors that Explain the Decline and Six that Do Not." (2004)
  • "Testing Theories Of Discrimination: Evidence From Weakest Link." (2004)
  • "Was there really a Hawthorne Effect at the Hawthorne Plant? An Analysis of the Original Illumination Experiments." (with John List, 2011)
  • "Checkmate: Exploring Backward Induction among Chess Players." (with John List, Sally Sadoff, 2011)
  • "Identifying Terrorists using Banking Data." (2012)
  • "The Impact of Legalized Abortion on Crime over the Last Two Decades." (with John J. Donohue, 2019)

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References

References

  1.  Four essays in positive political economy
A full list of references for this article are available at the Steven Levitt Wikipedia page

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