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The Quest for Parsimony in Behavioral Economics: New Methods and Evidence on Three Fronts Victor Stango Joanne Yoong Jonathan Zinman

Behavioral economics identifies myriad deviations from classical economic assumptions about consumer decision-making, but lacks evidence on how its diverse phenomena fit together and whether they are amenable to modeling as low-dimensional constructs. We pursue such parsimony on three fronts, with success on two and instructive failure on the third. Elicitation parsimony reduces impediments to data collection by streamlining standard methods for directly measuring a person’s behavioral tendencies. We do so for 17 potentially behavioral factors per individual in a large, nationally representative sample, and several sets of results indicate that our streamlined elicitations yield low-cost, high-quality data. Behavioral sufficient statistic parsimony aggregates information across behavioral factors, within-person, to create two new lower-dimensional, consumer-level measures of behavioral tendencies. These statistics usefully capture cross-sectional variation in behavioral tendencies, strongly and negatively correlating with a rich index of financial condition even after (over-)controlling for demographics, classical risk attitudes and patience, cognitive skills including financial literacy, and survey effort. Our quest for common factor parsimony largely fails: within-consumer correlations between behavioral factors tend to be low, and the common factor contributing to all 17 behavioral factors within-individual is weakly identified and does not help explain outcomes conditional on the other covariates. Altogether our results provide many new insights into behavioral factors: their distributions, inter-relationships, distinctions from classical factors, and links to outcomes. Our findings also support the two leading approaches to modeling behavioral factors—considering them in relative isolation, and summarizing them with reduced-form sufficient statistics—and provide data and methods for honing both approaches.

The Economic Origins of Conflict in Africa Eoin McGuirk Marshall Burke

We study the impact of plausibly exogenous global food price shocks on local violence across the African continent. In food-producing areas, higher food prices reduce conflict over the control of territory (what we call “factor conflict”) and increase conflict over the appropriation of surplus (“output conflict”). We argue that this difference arises because higher prices raise the opportunity cost of soldiering for producers, while simultaneously inducing net consumers to appropriate increasingly valuable surplus as their real wages fall. In regions without crop agriculture, higher food prices increase both factor conflict and output conflict, as poor consumers turn to soldiering and appropriation in order to maintain a minimum consumption target. We validate local-level findings on output conflict using geocoded survey data on interpersonal theft and violence against commercial farmers and traders. Ignoring the distinction between producer and consumer effects leads to attenuated estimates. Our findings help reconcile a growing but ambiguous literature on the economic roots of conflict.

Pledgeability, Industry Liquidity, and Financing Cycles Douglas W. Diamond Yunzhi Hu Raghuram G. Rajan

Why are downturns following prolonged episodes of high valuations of firms so severe and long? Why do firms promise high external payments when they anticipate high valuations, and underperform subsequently? In this paper, we propose a theory of financing cycles where the control rights to enforce claims in an asset price boom (rights to sell assets) differ from the control rights used in more normal times (rights over cash flows that we term “pledgeability”). Firm management’s limited incentive to enhance pledgeability in an asset price boom can have long-drawn adverse effects in a downturn, which may not be resolved by renegotiation. This can also explain why involuntary asset turnover and asset misallocation to outsiders are high in a downturn as well as why industry productivity falls. The paper highlights an adverse consequence of high anticipated liquidity, working through leverage, on the economy’s access to finance and productivity when that liquidity fails to materialize.

Effects of Maternal Work Incentives on Youth Crime Hope Corman Dhaval Dave Ariel Kalil Nancy E. Reichman

This study exploits differences in the implementation of welfare reform across states and over time to identify causal effects of maternal work incentives, and by inference employment, on youth arrests between 1990 and 2005, the period during which welfare reform unfolded. We consider both serious and minor crimes as classified by the FBI, investigate the extent to which effects were stronger in states with more stringent work incentive policies and larger welfare caseload declines, and use a number of different model specifications to assess robustness and patterns. We find that welfare reform led to reduced youth arrests for minor crimes, by 7-9 %, with similar estimates for males and females, but that it did not affect youth arrests for serious crimes. The results from this study add to the scant literature on the effects of maternal employment on adolescent behavior by exploiting a large-scale social experiment that is still in effect to this day, and provide some support for the widely-embraced argument that welfare reform would discourage undesirable social behavior, not only of mothers, but also of the next generation.

Imperfect Markets versus Imperfect Regulation in U.S. Electricity Generation Steve Cicala

This paper measures changes in electricity generation costs caused by the introduction of market mechanisms to determine output decisions in service areas that were previously using command-and-control-type operations. I use the staggered transition to markets from 1999- 2012 to evaluate the causal impact of liberalization using a nationwide panel of hourly data on electricity demand and unit-level costs, capacities, and output. To address the potentially confounding effects of unrelated fuel price changes, I use machine learning methods to predict the allocation of output to generating units in the absence of markets for counterfactual production patterns. I find that markets reduce production costs by $3B per year by reallocating output among existing power plants: Gains from trade across service areas increase by 20% based on a 10% increase in traded electricity, and costs from using uneconomical units fall 20% from a 10% reduction in their operation.

Related Investing: Corporate Ownership and Capital Mobilization during Early Industrialization B. Zorina Khan

Scholars engage in extensive debate about the role of families and corporations in economic growth. Some propose that personal ties provide a mechanism for overcoming such transactions costs as asymmetrical information, while others regard familial connections as conduits for inefficiency, with the potential for nepotism, corruption and exploitation of other stakeholders. This empirical study is based on a unique panel dataset comprising all of the shareholders in a sample of early corporations, including information on such characteristics as gender, age, occupation, household composition, real estate holdings and personal wealth. Related investing was widespread among directors and elite shareholders, but was also pervasive among women and small shareholders. Personal ties were especially evident among ordinary investors in the newer, riskier ventures, and helped to ensure persistence in shareholding. “Outsider investors” were able to overcome a lack of experience and information by taking advantage of their own networks. The link between related investing and the concentration of ownership in these corporations suggests that this phenomenon was likely associated with a reduction in perceptions of risk, especially beneficial for capital mobilization in emerging ventures. These patterns are consistent with a more productive interpretation of related investing and its function in newly developing societies.

The Economic Consequences of Family Policies: Lessons from a Century of Legislation in High-Income Countries Claudia Olivetti Barbara Petrongolo

We draw lessons from existing work and our own analysis on the effects of parental leave and other interventions aimed at aiding families. The outcomes of interest are female employment, gender gaps in earnings and fertility. We begin with a discussion of the historical introduction of family policies ever since the end of the nineteenth century and then turn to the details regarding family policies currently in effect across high-income nations. We sketch a framework concerning the effects of family policy to motivate our country- and micro-level evidence on the impact of family policies on gender outcomes. Most estimates of the impact of parental leave entitlement on female labor market outcomes range from negligible to weakly positive. There is stronger evidence that spending on early education and childcare increases labor force participation of women and reduces gender gaps.

Targeted Remedial Education: Experimental Evidence from Peru Juan Saavedra Emma Näslund-Hadley Mariana Alfonso

An outstanding challenge in education is improving learning among low-achieving students. We present results from the first randomized experiment of an inquiry-based remedial science-education program for low-performing elementary students in the setting of a developing country. At 48 low-income public elementary schools in Lima, Peru and surrounding areas, third-grade students scoring in the bottom half of their science classes were selected at random to receive up to 16 remedial sessions of 90 minutes each during the school year. Control-group compliance with assignment (no extra tutoring) was close to perfect. Treatment-group compliance was roughly 40 percent, or five to six remedial sessions—a 4 to 5 percent increase in total science instruction time over the school year. Despite the low-intensity treatment, students assigned to the remedial sessions scored 0.12 standard deviations higher on a science endline test. But all improvements were concentrated among boys, for whom gains were 0.22 standard deviations. Remedial education does not produce within-student spillovers to math, or spillovers on other students.

FDI and Capital Formation in Developing Economies: New Evidence from Industry-level Data Alessia A. Amighini Margaret S. McMillan Marco Sanfilippo

We contribute to the long debated issue of whether inward foreign direct investment (FDI) can stimulate investment in developing countries by introducing a novel measure of FDI, based on industry-level data. Our results suggest a positive impact of FDI on total investment – measured as the ratio of gross fixed capital formation to GDP – but only if multinational enterprises engage in manufacturing production; the same does not hold for other business activities. Moreover, we find evidence of a more beneficial impact of foreign investors from advanced economies compared to developing ones. Our results are robust to alternative measures of FDI, as well as to instrumental variable approaches accounting for the potential endogeneity of FDI.

Open Borders in the European Union and Beyond: Migration Flows and Labor Market Implications John Kennan

In 2004, the European Union admitted 10 new countries, and wages in these countries were generally well below the levels in the existing member countries. Citizens of these newly-admitted countries were subsequently free to take jobs anywhere in the EU, and many did so. In 2015, a large number of refugees from Syria and other broken countries sought to migrate to EU countries (along very dangerous routes), and these refugees were met with fierce resistance, at least in some places. This paper seeks to understand the labor market implications of allowing free migration across borders, with particular reference to the EU. The aim is to quantify the migration flows associated with EU enlargement, and to analyze the extent to which these flows affected equilibrium wages. The main conclusion is that the real wage effects are small, and the gains from open borders are large.

The Rise of American Ingenuity: Innovation and Inventors of the Golden Age Ufuk Akcigit John Grigsby Tom Nicholas

We examine the golden age of U.S. innovation by undertaking a major data collection exercise linking historical U.S. patents to state and county-level aggregates and matching inventors to Federal Censuses between 1880 and 1940. We identify a causal relationship between patented inventions and long-run economic growth and outline a basic framework for analyzing key macro and micro-level determinants. We find a positive relationship between innovation and drivers of regional performance including population density, financial development and geographic connectedness. We also explore the impact of social structure measured by slavery and religion. We then profile the characteristics of inventors and their life cycle finding that inventors were highly educated, positively selected through exit early in their careers, made time allocation decisions such as delayed marriage, and tended to migrate to places that were conducive to innovation. Father's income was positively correlated with becoming an inventor, though not when controlling for the child's education. We show there were strong financial returns to technological development. Finally, we document an inverted-U shaped relationship between inequality and innovation but also show that innovative places tended to be more socially mobile. Our new data help to address important questions related to innovation and long-run growth dynamics.

Exit, Tweets and Loyalty Joshua S. Gans Avi Goldfarb Mara Lederman

Hirschman’s Exit, Voice, and Loyalty highlights the role of “voice” in disciplining firms for low quality. We develop a formal model of voice as a relational contact between firms and consumers and show that voice is more likely to emerge in concentrated markets. We test this model using data on tweets to major U.S. airlines. We find that tweet volume increases when quality – measured by on-time performance – deteriorates, especially when the airline operates a large share of the flights in a market. We also find that airlines are more likely to respond to tweets from consumers in such markets.

Subsidizing Fuel Efficient Cars: Evidence from China's Automobile Industry Chia-Wen Chen Wei-Min Hu Christopher R. Knittel

The Chinese automobile market is the largest in the world with annual sales exceeding 20 million vehicles. The tremendous growth in sales---over 200 percent from 2008 to 2015---and concerns over local air quality have prompted China's policy makers to incentivize the adoption of more fuel efficient vehicles. We examine the response of vehicle purchase behavior to China's largest national subsidy program for fuel efficient vehicles during 2010 and 2011. Using variation from the program's eligibility cutoffs, we find that the program boosted sales for subsidized vehicle models, but that the program also created a substitution effect within highly fuel efficient vehicles and most subsidies went to inframarginal consumers. This substitution effect greatly reduces the cost effectiveness of the program. We calculate that the average cost per ton of carbon dioxide saved is over 82 USD, well above the social cost of carbon used in U.S. regulatory filings. Using the framework in Boomhower and Davis (2014) and accounting for local pollution benefits, we show that ignoring the substitution effect would lead one to conclude that the program is welfare enhancing, whereas in fact the marginal cost of the program exceeds the marginal benefit by almost as much as 300 percent. We also show that the program was not well-targeted; the effect of the subsidy on sales of fuel efficient vehicles was smaller in areas where consumers were more likely to purchase fuel inefficient models or were lower educated.

The Effect of State Medicaid Expansions on Prescription Drug Use: Evidence from the Affordable Care Act Ausmita Ghosh Kosali Simon Benjamin D. Sommers

This study provides a national analysis of how the 2014 Affordable Care Act (ACA) Medicaid expansions have affected aggregate prescription drug utilization. Given the prominent role of prescription medications in the management of chronic conditions, as well as the high prevalence of unmet health care needs in the population newly eligible for Medicaid, the use of prescription drugs represents an important measure of the ACA’s policy impact. Prescription drug utilization also provides insights into whether insurance expansions have increased access to physicians, since obtaining these medications requires interaction with a health care provider. We use 2013-2015 data from a large, nationally representative, all-payer pharmacy transactions database to examine effects on overall prescription medication utilization as well as effects within specific drug classes. Using a differences-in-differences (DD) regression framework, we find that within the first 15 months of expansion, Medicaid-paid prescription utilization increased by 19 percent in expansion states relative to states that did not expand; this works out to approximately seven additional prescriptions per year per newly enrolled beneficiary. The greatest increases in Medicaid prescriptions occurred among diabetes medications, which increased by 24 percent. Other classes of medication that experienced relatively large increases include contraceptives (22 percent) and cardiovascular drugs (21 percent), while several classes more consistent with acute conditions such as allergies and infections experienced significantly smaller increases. As a placebo test, we examine Medicare-paid prescriptions and find no evidence of a post-ACA effect. Both expansion and non-expansion states followed statistically similar trends in Medicaid prescription utilization in the pre-policy era, offering support for our DD approach. We did not observe reductions in uninsured or privately insured prescriptions, suggesting that increased utilization under Medicaid did not substitute for other forms of payment. Within expansion states, increases in prescription drug utilization were larger in geographical areas with higher uninsured rates prior to the ACA. Finally, we find some suggestive evidence that increases in prescription drug utilization were greater in areas with larger Hispanic and black populations.

'Acting Wife': Marriage Market Incentives and Labor Market Investments Leonardo Bursztyn Thomas Fujiwara Amanda Pallais

Do single women avoid career-enhancing actions because these actions could signal personality traits, like ambition, that are undesirable in the marriage market? We answer this question through two field experiments in an elite U.S. MBA program. Newly-admitted MBA students filled out a questionnaire on job preferences and personality traits to be used by the career center in internship placement; randomly-selected students thought their answers would be shared with classmates. When they believed their classmates would not see their responses, single and non-single women answered similarly. However, single women reported desired yearly compensation $18,000 lower and being willing to travel seven fewer days per month and work four fewer hours per week when they expected their classmates would see their answers. They also reported less professional ambition and tendency for leadership. Neither men nor non-single women changed their answers in response to peer observability. A supplementary experiment asked students to make choices over hypothetical jobs before discussing their choices in their career class small groups; we randomly varied the groups' gender composition. Single women were much less likely to select career-focused jobs when their answers would be shared with male peers, especially single ones. Two results from observational data support our experimental results. First, in a new survey, almost three-quarters of single female students reported avoiding activities they thought would help their career because they did not want to appear ambitious. They eschewed these activities at higher rates than did men and non-single women. Second, while unmarried women perform similarly to married women in class when their performance is kept private from classmates (on exams and problem sets), they have significantly lower participation grades.

Prestige and Profit: The Royal Society of Arts and Incentives for Innovation, 1750-1850 B. Zorina Khan

Debates have long centered around the relative merits of prizes and other incentives for technological innovation. Some economists have cited the experience of the prestigious Royal Society of Arts (RSA), which offered honorary and cash awards, as proof of the efficacy of innovation prizes. The Society initially was averse to patents and prohibited the award of prizes for patented inventions. This study examines data on several thousand of these inducement prizes, matched with patent records and biographical information about the applicants. The empirical analysis shows that inventors of items that were valuable in the marketplace typically chose to obtain patents and to bypass the prize system. Owing to such adverse selection, prizes were negatively related to subsequent areas of important technological discovery. The RSA ultimately became disillusioned with the prize system, which they recognized had done little to promote technological progress and industrialization. The Society acknowledged that its efforts had been “futile” because of its hostility to patents, and switched from offering inducement prizes towards lobbying for reforms to strengthen the patent system. The findings suggest some skepticism is warranted about claims regarding the role that elites and nonmarket-oriented institutions played in generating technological innovation and long-term economic development.

Political Determinants of Competition in the Mobile Telecommunication Industry Mara Faccio Luigi Zingales

We study how political factors shape competition in the mobile telecommunication sector. We show that the way a government designs the rules of the game has an impact on concentration, competition, and prices. Pro-competition regulation reduces prices, but does not hurt quality of services or investments. More democratic governments tend to design more competitive rules, while more politically connected operators are able to distort the rules in their favor, restricting competition. Government intervention has large redistributive effects: U.S. consumers would gain $65bn a year if U.S. mobile service prices were in line with German ones and $44bn if they were in line with Danish ones.

Location Choice, Portfolio Choice Ioannis Branikas Harrison Hong Jiangmin Xu

Households hold nondiversified stock portfolios of firms headquartered near their city of residence. Explanations assign a causal role for proximity, either in generating an informational advantage or a familiarity bias. Empirical analyses assume households locate randomly, even though they optimally select a city. This selection is important since latent location factors might be correlated with latent demand for local stocks. Building on location choice models from urban economics, we develop a Heckman (1977)-style model to account for the effect of location choices on portfolio choices. Adjusting for selection significantly reduces local bias and the performance of local stock picks.

Misallocation, Selection and Productivity: A Quantitative Analysis with Panel Data from China Tasso Adamopoulos Loren Brandt Jessica Leight Diego Restuccia

We use household-level panel data from China and a quantitative framework to document the extent and consequences of factor misallocation in agriculture. We find that there are substantial frictions in both the land and capital markets linked to land institutions in rural China that disproportionately constrain the more productive farmers. These frictions reduce aggregate agricultural productivity in China by affecting two key margins: (1) the allocation of resources across farmers (misallocation) and (2) the allocation of workers across sectors, in particular the type of farmers who operate in agriculture (selection). We show that selection can substantially amplify the static misallocation effect of distortionary policies by affecting occupational choices that worsen the distribution of productive units in agriculture.

Birth Order and Delinquency: Evidence from Denmark and Florida Sanni N. Breining Joseph J. Doyle, Jr. David N. Figlio Krzysztof Karbownik Jeffrey Roth

Birth order has been found to have a surprisingly large influence on educational attainment, yet much less is known about the role of birth order on delinquency outcomes such as disciplinary problems in school, juvenile delinquency, and adult crime: outcomes that carry significant negative externalities. This paper uses particularly rich datasets from Denmark and the state of Florida to examine these outcomes and explore potential mechanisms. Despite large differences in environments across the two areas, we find remarkably consistent results: in families with two or more children, second-born boys are on the order of 20 to 40 percent more likely to be disciplined in school and enter the criminal justice system compared to first-born boys even when we compare siblings. The data allow us to examine a range of potential mechanisms, and the evidence rules out differences in health at birth and the quality of schools chosen for children. We do find that parental time investment measured by time out of the labor force is higher for first-borns at ages 2-4, suggesting that the arrival of a second-born child extends early-childhood parental investments for first-borns.

The Missing Bretton Woods Debate over Flexible Exchange Rates Douglas A. Irwin

The collapse of the gold standard in the 1930s sparked a debate about the merits of fixed versus floating exchange rates. Yet the debate quickly vanished: there was almost no discussion about the exchange rate regime at the Bretton Woods conference in 1944 because John Maynard Keynes and Harry Dexter White agreed that exchange rate stability through fixed but adjustable pegs was the right approach. In light of the difficult macroeconomic tradeoffs experienced under the gold standard a decade earlier, the outright rejection of floating exchange rates seems surprising. This paper explores the views of leading economists about the exchange rate provisions in the Bretton Woods agreement and examines why arguments for floating exchange rates were so quickly dismissed.

Reversed Citations and the Localization of Knowledge Spillovers Ashish Arora Sharon Belenzon Honggi Lee

Spillover of knowledge is considered to be an important cause of agglomeration of inventive activity. Many studies argue that knowledge spillovers are localized based on the observation that patents tend to cite nearby patents disproportionately. Specifically, patent citations are interpreted as mapping the transmission of knowledge from the cited invention to the citing invention. The localization of patent citations is therefore taken as evidence that such knowledge transmission is also localized. Localization of knowledge transmission, however, may not be the only reason for why patent citations are localized. Using a set of citations that are unlikely to be associated with knowledge transmission from the cited to the citing invention, we present evidence that challenges the view that localization of citations is driven by localized knowledge transmission. Though localized knowledge transmission may well exist, it is unlikely to be captured by patent citations

Do Anti-Poverty Programs Sway Voters? Experimental Evidence from Uganda Christopher Blattman Mathilde Emeriau Nathan Fiala

A Ugandan government program allowed groups of young people to submit proposals to start skilled enterprises. Among 535 eligible proposals, the government randomly selected 265 to receive grants of nearly $400 per person. Blattman et al. (2014) showed that, after four years, the program raised employment by 17% and earnings 38%. This paper shows that, rather than rewarding the government in elections, beneficiaries increased opposition party membership, campaigning, and voting. Higher incomes are associated with opposition support, and we hypothesize that financial independence frees the poor to express political preferences publicly, being less reliant on patronage and other political transfers.

Ownership Concentration and Strategic Supply Reduction Ulrich Doraszelski Katja Seim Michael Sinkinson Peichun Wang

We explore the sensitivity of the U.S. government's ongoing incentive auction to multi-license ownership by broadcasters. We document significant broadcast TV license purchases by private equity firms prior to the auction and perform a prospective analysis of the effect of ownership concentration on auction outcomes. We find that multi-license holders are able to raise spectrum acquisition costs by 22% by strategically withholding some of their licenses to increase the price for their remaining licenses. We analyze a potential rule change that reduces the distortion in payouts to license holders by up to 80%, but find that lower participation could greatly increase payouts and exacerbate strategic effects.

Winter is Coming: The Long-Run Effects of Climate Change on Conflict, 1400-1900 Murat Iyigun Nathan Nunn Nancy Qian

We investigate the long-run effects of cooling on conflict. We construct a geo-referenced and digitized database of conflicts in Europe, North Africa, and the Near East from 1400-1900, which we merge with historical temperature data. We show that cooling is associated with increased conflict. When we allow the effects of cooling over a fifty-year period to depend on the extent of cooling during the preceding period, the effect of cooling on conflict is larger in locations that experienced earlier cooling. We interpret this as evidence that the adverse effects of climate change intensify with its duration.

Macro-economic Management in an Electronic Credit/Financial System Joseph E. Stiglitz

Modern technology provides the basis of an efficient low-cost electronic payments as an alternative to the current system where fiat money is the medium of exchange. This paper explores possible macro-economic implication, showing how such a financial system might enhance government’s ability to control the level of aggregate demand. As in other arenas, in second-best situations with uncertainty, systems where there is an attempt to directly control quantities directly may perform better (e.g. have less volatility) than those using prices and other indirect control mechanisms. The paper identifies conditions under which in a system of electronic money, macroeconomic variability is lower when the level and direction of credit creation is directly controlled, through appropriately designed credit auctions, than in a system of indirect control of, say, investment via the interest rate. This is especially important since much macro-economic instability is associated with instability in credit creation and in the fraction allocated to newly produced goods and services. The paper also explains how, in an open economy, in a system of electronic money, credit auctions combined with trade chits might enable the control of net exports, again enhancing macro-stability. Finally, we explain how under a system of electronic money, the rents that are currently associated with credit creation and that arise from bank franchises—that constitute a form of appropriation of the returns from trust in the government and its ability and willingness to bail-out banks in the event of a crisis or bank run—could be appropriated by the government to a greater degree than at present.

Evaluating Post-Secondary Aid: Enrollment, Persistence, and Projected Completion Effects Joshua Angrist David Autor Sally Hudson Amanda Pallais

This paper reports updated findings from a randomized evaluation of a generous, privately- funded scholarship program for Nebraska public college students. Scholarship offers boosted college enrollment and persistence. Four years after award receipt, randomly-selected scholarship winners were 13 percentage points more likely to be enrolled in college. Enrollment effects were larger for groups with historically low college attendance, including nonwhite students, first- generation college-goers, and students with low high school GPAs. Scholarships shifted many students from two- to four-year colleges, reducing associate's degree completion in the process. Despite their substantial gains in four-year college enrollment, award winners from the first study cohort were slightly less likely to graduate on time than control applicants, suggesting that scholarships delay degree completion for some students. Projected graduation rates using the last cohort of pre-experimental scholarship applicants indicate that scholarships are likely to increase bachelor's degree completion within five years.