Knowledge that Transforms

We exploit inheritance episodes to provide novel causal evidence on the long-run effects of a large financial windfall on saving behavior. For identification, we combine a longitudinal panel of administrative wealth reports with variation in the timing of sudden, unexpected parental deaths. We show that after inheritance, net worth converges toward the path established before parental death, with only one-third of the initial windfall remaining after nine years. We interpret these findings through the lens of a generalized consumption-saving framework. To quantitatively replicate this behavior, life-cycle consumption models require impatient consumers and strong precautionary saving motives.

This paper analyzes crime as a function of the interaction between offenders and victims. I study robbery of bus drivers, a crime that remains common in cities throughout the world. Exploiting the timing of a Chilean public transportation reform and detailed administrative data, I show how victims' propensity to resist an attack can alter the level and nature of criminal activity. I also find a large decline in crime after the implementation of a technological innovation that eliminated cash transactions on buses. My results suggest a strong relationship between victim incentives, cash, and crime.

This paper estimates the effect on innovation of increased market access facilitated by trade liberalization. We use a novel empirical design that exploits tariff cuts during the 1990s, along with detailed data on innovation among firms from 65 countries. Our results reveal a large effect of tariff cuts on innovation as measured by patent data, suggesting that multilateral liberalization has promoted innovation and growth. These effects are not driven by the deterioration of innovation quality, and the results are robust to controlling for changes in the patent system and to industry-wide trends in innovation.

Most criminal defendants cannot afford to hire an attorney. To provide constitutionally mandated legal services, states commonly use either private court-appointed attorneys or a public defender organization. This paper investigates the relative efficacy of these two modes of indigent defense by comparing outcomes of codefendants assigned to different types of attorneys within the same case. Using data from San Francisco, I show that in multiple defendant cases, public defender assignment is plausibly as good as random. I find that public defenders reduce the probability of any prison sentence by 22% and the length of prison sentences by 10%.

We present novel insights on the role of international trade following unanticipated fiscal changes in a flexible exchange rate environment. We show analytically that fiscal multipliers can be larger in economies more open to trade, even when fiscal expansions imply trade deficits. Three factors determine how trade linkages matter: the relative import share of public and private goods, the financing of government debt, and the currency invoicing of exports. A Bayesian prior-predictive analysis shows that a quantitative model bears the same predictions. Conditioning on Canadian and U.S. data, we find support for larger multipliers relative to a counterfactually closed economy.

We introduce NLK, a model that connects the Nash equilibrium (NE) and level-k. It allows a player in a game to believe that her opponent may be either less or as sophisticated as she is, a view supported in psychology. We apply NLK to data from five published papers on static, dynamic, and auction games. NLK provides different predictions from those of the NE and level-k; moreover, a simple version of NLK explains the experimental data better in many cases, with the same or fewer parameters. We discuss extensions to games with more than two players and heterogeneous beliefs.

Higher-order risk preferences are important determinants of economic behavior. We apply insights from behavioral economics: we measure higher-order risk preferences for pure gains and losses. We find a reflection effect not only for second-order risk preferences, as did Kahneman and Tversky (1979), but also for higher-order risk preferences: we find risk aversion, prudence and intemperance for gains and much more risk-loving preferences, imprudence and temperance for losses. These findings are at odds with a universal preference for combining good with bad or good with good, which previous results suggest may underlie higher-order risk preferences.

We use exogenously assigned general practitioners to study the effects of female role models on girls' educational outcomes. Girls who are exposed to female general practitioners are more likely to sort into male-dominated education programs in high school, most notably science, technology, engineering, mathematics, and medicine (STEMM). These effects persist as they enter college and select majors. The effects are larger for high-ability girls with low-educated mothers, suggesting that female role models improve intergenerational mobility and narrow the gifted gap. This demonstrates that role model effects in education need not involve individuals in the classroom but can arise due to everyday interactions with medical professionals.

We exploit the variation in admission cutoffs across colleges at a leading Indian university to estimate the causal effects of enrolling in a selective college on cognitive attainment, economic preferences, and Big Five personality traits. Using a regression discontinuity design, we find that enrolling in a selective college improves university exam scores of the marginally admitted women and makes them less overconfident and less risk averse, while men in selective colleges experience a decline in extraversion and conscientiousness. We find differences in peer quality and rank concerns to be driving our findings.

While economic theories indicate that market power by downstream firms can potentially counteract market power upstream, antitrust policy is opaque as to whether to incorporate countervailing market power in merger analyses. We use detailed national claims data from the health care sector to evaluate whether countervailing insurer power does indeed limit hospitals' exercise of market power. We estimate willingness-to-pay models to evaluate hospital market power across analysis areas. We find that countervailing market power is important: a typical hospital merger would raise hospital prices 4.3% at the 25th percentile of insurer concentration but only 0.97% at the 75th percentile of insurer concentration.