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Option Momentum

Journal of Finance 2023 78(6), 3141-3192
This paper investigates the performance of option investments across different stocks by computing monthly returns on at‐the‐money straddles on individual equities. We find that options with high historical returns continue to significantly outperform options with low historical returns over horizons ranging from 6 to 36 months. This phenomenon is robust to including out‐of‐the‐money options or delta‐hedging the returns. Unlike stock momentum, option return continuation is not followed by long‐run reversal. Significant returns remain after factor risk adjustment and after controlling for implied volatility and other characteristics. Across stocks, trading costs are unrelated to the magnitude of momentum profits.

A Satellite Account for Health in the United States

American Economic Review 2022 112(2), 494-533 open access
This paper develops a satellite account for the US health sector and measures productivity growth in health care for the elderly population between 1999 and 2012. We measure the change in medical spending and health outcomes for a comprehensive set of 80 conditions. Medical care has positive productivity growth over the time period, with aggregate productivity growth of 1.5% per year. However, there is significant heterogeneity in productivity growth. Care for cardiovascular disease has had very high productivity growth. In contrast, care for people with musculoskeletal conditions has been costly but has not led to improved outcomes.

Evolutionary Origins of the Endowment Effect: Evidence from Hunter-Gatherers

American Economic Review 2014 104(6), 1793-1805 open access
The endowment effect, the tendency to value possessions more than non-possessions, is a well-known departure from rational choice and has been replicated in numerous settings. We investigate the universality of the endowment effect, its evolutionary significance, and its dependence on environmental factors. We experimentally test for the endowment effect in an isolated and evolutionarily relevant population of hunter-gatherers, the Hadza Bushmen of Northern Tanzania. We find that Hadza living in isolated regions do not display the endowment effect, while Hadza living in a geographic region with increased exposure to modern society and markets do display the endowment effect.

New Books: An Annotated Listing.

The Accounting Review 1989 64(3), 575-579
This article presents information on various books related to accountancy. The book "An Accountant's Guide to Databases," by K.N. Bhasker, examines the basic concepts and terminology of database management and its implications for the field of accounting. The book begins with a brief introduction to current micro-technology and the organization of computer files and defines three distinctive meanings of the term database relevant to its use in accounting. The purpose of the book "Comprehensive Auditing in Canada: Theory and Practice," by James Cutt, is the development of a theory and methodology for a comprehensive auditing model by examination of current theory and practice in the areas of auditing and policy analysis or program evaluation. The theory and methodology developed is designed primarily for the nonprofit component of the public sector but is extended to the profit component of the public and private sectors. In the book "The British Accounting Review Research Register 1988," edited by K.P. Gee and R.H. Gray, the data presented has been gathered from across 90 universities, polytechnics and colleges, and provides information on 1,072 accounting and finance academic staff members throughout the British Isles.

A Theory of Intergenerational Mobility

Journal of Political Economy 2018 126(S1), S7-S25 open access
We study the link between market forces, cross-sectional inequality, and intergenerational mobility. Emphasizing complementarities in the production of human capital, we show that wealthy parents invest, on average, more in their offspring than poorer ones. As a result, economic status persists across generations even in a world with perfect capital markets and without differences in innate ability. In fact, under certain conditions, successive generations of the same family may cease to regress toward the mean. We also consider how short- and long-run mobility are affected by changes in the returns to human capital.

The Determinants of Pesticide Regulation: A Statistical Analysis of EPA Decision Making

Journal of Political Economy 1992 100(1), 175-197
This paper examines the EPA's decision to cancel or continue the registrations of cancer-causing pesticides that went through the special review process between 1975 and 1989. Despite claims to the contrary, our analysis indicates that the EPA indeed balanced risks against benefits in regulating pesticides: Risks to human health or the environment increased the likelihood that a particular pesticide use was canceled by the EPA; at the same time, the larger the benefits associated with a particular use, the lower was the likelihood of cancellation. Intervention by special-interest groups was also important in the regulatory process. Comments by grower organizations significantly reduced the probability of cancellation, whereas comments by environmental advocacy groups increased the probability of cancellation. Our analysis suggests that the EPA is fully capable of weighing benefits and costs when regulating environmental hazards; however, the implicit value placed on health risks--$35 million per applicator cancer case avoided--may be considered high by some persons.

Report of the Committee on Professional Examinations.

The Accounting Review 1976 51(4), 1-30
Focuses on a project by the American Accounting Association's Committees on Professional Examinations which evaluated the professional examinations for accountants. Objectives of the project; Methodology of the projects; Comparison of examinations and accounting curricula; Recommendations.

CEO Political Leanings and Store‐Level Economic Activity during the COVID‐19 Crisis: Effects on Shareholder Value and Public Health

Journal of Finance 2022 77(5), 2949-2986 open access
Maintaining economic output during the COVID-19 pandemic results in benefits for firm shareholders but comes at a potential cost to public health. Using store-level data, we examine how a CEO's political leaning impacts this trade-off. We document that firms with a Republican-leaning CEO experience a relative increase in store visits compared to firms with a Democratic-leaning CEO. The increase in store visits is associated with higher sales and positive abnormal stock returns. However, we also document higher COVID-19 transmission rates and more employee safety complaints in communities where establishments with higher store traffic are managed by a Republican-leaning CEO.

Borrowing to Save? The Impact of Automatic Enrollment on Debt

Journal of Finance 2022 77(1), 403-447
Does automatic enrollment into a retirement plan increase financial distress due to increased borrowing outside the plan? We study a natural experiment created when the U.S. Army began automatically enrolling newly hired civilian employees into the Thrift Savings Plan. Four years after hire, automatic enrollmentincreases cumulative contributions to the plan by 4.1% of annual salary, but we find little evidence ofincreased financial distress. Automatic enrollment causes no significant change in credit scores, debt balances excluding auto debt and first mortgages, or adverse credit outcomes, with the possible exception of increasedfirst‐mortgage balances in foreclosure.