Knowledge that Transforms

To make high-quality research more accessible and easier to explore.

Fields:

Estimating Time Preferences from Convex Budgets

American Economic Review 2012 102(7), 3333-3356
Experimentally elicited discount rates are frequently higher than what seems reasonable for economic decision-making. Such high rates are often attributed to present-biased discounting. A well-known bias of standard measurements is the assumption of linear consumption utility. Attempting to correct this bias using measures of risk aversion to identify concavity, researchers find reasonable discounting but at the cost of exceptionally high utility function curvature. We present a new methodology for identifying time preferences, both discounting and curvature, from simple allocation decisions. We find reasonable levels of both discounting and curvature and, surprisingly, dynamically consistent time preferences. (JEL C91, D12, D81)

The Rise of the Service Economy

American Economic Review 2012 102(6), 2540-2569 open access
This paper analyzes the role of specialized high-skilled labor in the growth of the service sector as a share of the total economy. Empirically, we emphasize that the growth has been driven by the consumption of services. Rather than being driven by low-skill jobs, the importance of skill-intensive services has risen, and this has coincided with a period of rising relative wages and quantities of high-skilled labor. We develop a theory where demand shifts toward ever more skill-intensive output as income rises, and because skills are highly specialized this lowers the importance of home production relative to market services. The theory is also consistent with a rising level of skill and skill premium, a rising relative price of services that is linked to this skill premium, and rich product cycles between home and market, all of which are observed in the data.

Shifts in Privacy Concerns

American Economic Review 2012 102(3), 349-353 open access
This paper explores how digitization and the associated use of customer data have affected the evolution of consumer privacy concerns. We measure privacy concerns by reluctance to disclose income in an online marketing research survey. Using over three million responses over eight years, our data show: (1) Refusals to reveal information have risen over time, (2) Older people are less likely to reveal information, and (3) The difference between older and younger people has increased over time. Our results suggest that the trends over time are partly due to broadening perceptions of the contexts in which privacy is relevant.

The Strategy of Manipulating Conflict

American Economic Review 2012 102(6), 2897-2922
Two players choose hawkish or dovish actions in a conflict game with incomplete information. An “extremist,” who can either be a hawk or a dove, attempts to manipulate decision making. If actions are strategic complements, a hawkish extremist increases the likelihood of conflict, and reduces welfare, by sending a public message which triggers hawkish behavior from both players. If actions are strategic substitutes, a dovish extremist instead sends a public message which causes one player to become more dovish and the other more hawkish. A hawkish (dovish) extremist is unable to manipulate decision making if actions are strategic substitutes (complements). (JEL D74, D82)

Follow the Money: Quantifying Domestic Effects of Foreign Bank Shocks in the Great Recession

American Economic Review 2012 102(3), 213-218
Foreign banks pulled significant funding from their US branches during the Great Recession. We estimate that the average-sized branch experienced a twelve percent net internal fund “withdrawal,” with the fund transfer disproportionately bigger for larger branches. This internal shock to the balance sheet of US branches of foreign banks had sizable effects on their lending. On average, for each dollar of funds transferred internally to the parent, branches decreased lending supply by about forty to fifty cents. However, the extent of the lending effects was very different across branches depending on their pre-crisis modes of operation in the United States.

International Robust Disagreement

American Economic Review 2012 102(3), 152-155 open access
We characterize the equilibrium of a two-country, two-good economy in which agents have opposite preference bias toward one of the two consumption goods and fear model misspecification. We document that disagreement about endowments' growth prospects is a persistent endogenous outcome of this class of economies.

The Colonial Origins of Comparative Development: An Empirical Investigation: Comment

American Economic Review 2012 102(6), 3059-3076
Acemoglu, Johnson, and Robinson's (2001) seminal article argues property-rights institutions powerfully affect national income, using estimated mortality rates of early European settlers to instrument capital expropriation risk. However, 36 of the 64 countries in the sample are assigned mortality rates from other countries, often based on mistaken or conflicting evidence. Also, incomparable mortality rates from populations of laborers, bishops, and soldiers—often on campaign—are combined in a manner that favors the hypothesis. When these data issues are controlled for, the relationship between mortality and expropriation risk lacks robustness, and instrumental-variable estimates become unreliable, often with infinite confidence intervals. (JEL D02, E23, F54, I12, N40, O43, P14)

Information Choice Technologies

American Economic Review 2012 102(3), 35-40
Theories based on information costs or frictions have become increasing popular in macroeconomics and macro-finance. The literature has used various types of information choices, such as rational inattention, inattentiveness, information markets and costly precision. Using a unified framework, we compare these different information choice technologies and explain why some generate increasing returns and others, particularly those where agents choose how much public information to observe, generate multiple equilibria. The results can help applied theorists to choose the appropriate information choice technology for their application and to understand the consequences of that modeling choice.

Durable Consumption and Asset Management with Transaction and Observation Costs

American Economic Review 2012 102(5), 2272-2300
The empirical evidence on rational inattention lags the theoretical developments: micro evidence on one of the most immediate consequences of observation costs––the infrequent observation of state variables––is not available in standard datasets. We contribute to filling the gap using new household surveys. To match these data we modify existing models, shifting the focus from nondurable to durable consumption. The model features both observation and transaction costs and implies a mixture of time-dependent and state-dependent rules. Numerical simulations explain the frequencies of trading and observation of the median investor with small observation costs and larger transaction costs. (JEL D12, D14, E21, G11)

Overcoming Adverse Selection: How Public Intervention Can Restore Market Functioning

American Economic Review 2012 102(1), 29-59
The paper provides a first analysis of market jump starting and its two-way interaction between mechanism design and participation constraints. The government optimally overpays for the legacy assets and cleans up the market of its weakest assets, through a mixture of buybacks and equity injections, and leaves the firms with the strongest legacy assets to the market. The government reduces adverse selection enough to let the market rebound, but not too much, so as to limit the cost of intervention. The existence of a market imposes no welfare cost. (JEL D82, D83, G01, G31, H81)