Knowledge that Transforms

We test the relation between ambiguity aversion and five household portfolio choice puzzles: nonparticipation in equities, low allocations to equity, home-bias, own-company stock ownership, and portfolio under-diversification. In a representative US household survey, we measure ambiguity preferences using custom-designed questions based on Ellsberg urns. As theory predicts, ambiguity aversion is negatively associated with stock market participation, the fraction of financial assets in stocks, and foreign stock ownership, but it is positively related to own-company stock ownership. Conditional on stock ownership, ambiguity aversion is related to portfolio under-diversification, and during the financial crisis, ambiguity-averse respondents were more likely to sell stocks.

__Abstract__ This paper shows the importance of correcting for sample selection when investing in illiquid assets with endogenous trading. Using a large sample of 20,538 paintings that were sold repeatedly at auction between 1972 and 2010, we find that paintings with higher price appreciation are more likely to trade. This strongly biases estimates of returns. The selection-corrected average annual index return is 7 percent, down from 11 percent for traditional uncorrected repeat-sales regressions, and Sharpe Ratios drop from 0.4 to 0.1. From a pure financial perspective, passive index investing in paintings is not a viable investment strategy, once selection bias is accounted for. Our results have important implications for other illiquid asset classes that trade endogenously.

We propose and test a theory of using commodities as collateral for financing. Under capital control and collateral constraint, investors import commodities and pledge them as collateral to earn higher expected returns. Higher collateral demands increase commodity prices and make the inventory–convenience yield relation less negative. Our model illustrates these equilibrium effects and suggests that the violation of covered interest-rate parity is a proxy for collateral demands. Evidence from eight commodities in China and developed markets supports the theoretical predictions. Our findings complement the theory of storage and provide new insights into the financialization of commodity markets.

We study feedback from the risk of outstanding mortgage-backed securities (MBS) on the level and volatility of interest rates. We incorporate supply shocks resulting from changes in MBS duration into a parsimonious equilibrium dynamic term structure model and derive three predictions that are strongly supported in the data: (1) MBS duration positively predicts nominal and real excess bond returns, especially for longer maturities; (2) the predictive power of MBS duration is transitory in nature; and (3) MBS convexity increases interest rate volatility, and this effect has a hump-shaped term structure.

Financing from family and friends is the predominant type of informal finance. This paper proposes a theory that reconciles two seemingly paradoxical traits of this form of finance, namely, it is often provided at negative prices but nevertheless eschewed by borrowers. A central prediction is that such finance, while breeding trust, deters risk taking. Demand is thus constrained: entrepreneurs may forgo risky investment rather than finance it through family and friends. Formal finance is valuable precisely because it is regulated only by contract. The highlighted trade-offs between formal and informal finance are potentially relevant for the provision of microventure capital.

More than three-quarters of U.S. households bear consumer debt, yet we have little understanding of the relationship between financial education and the debt behavior of U.S. consumers. In this paper, we study the effects of exposure to financial training on debt outcomes in early adulthood. Identification comes from variation in financial literacy, economics, and mathematics course offerings and graduation requirements mandated over the 1990s and 2000s by state-level high-school curricula. The FRBNY Consumer Credit Panel provides debt outcomes based on quarterly Equifax credit reports from 1999 to 2012. Our analysis, based on a flexible event-study approach, reveals significant effects of financial education on debt-related outcomes of youth. On the extensive margin, financial literacy education has a sizable impact on the propensity of youth having a credit report. Conditional on having a credit report, on the intensive margin, math and financial literacy education exposure reduces the incidence of adverse outcomes - such as accounts in collections and delinquent accounts - and reduces both the likelihood of youth carrying debt and their average debt balances. The net effect of both math and financial literacy education is an increase in youths' average creditworthiness, as measured by the Equifax risk score. On the other hand, economic education increases the likelihood of individuals carrying balances, leads to significant increases in debt balances - in particular, debt used to support consumption - and, at the same time, increases the likelihood of adverse credit outcomes, leading to a decline in youths' average risk scores. The effects of these financial education policies accumulate over the course of early adulthood. Our results suggest that financial education programs, increasingly promoted by policymakers, are likely to have significant impacts on the financial decision-making of youth, but the effects depend on the content of these programs.

In affine asset pricing models, the innovation to the pricing kernel is a function of innovations to current and expected future values of an economic state variable, for example consumption growth, aggregate market returns, or short-term interest rates. The impulse response of this priced variable to fundamental shocks has a frequency (Fourier) decomposition, which captures the fluctuations induced in the priced variable at different frequencies. We show that the price of risk for a given shock can be represented as a weighted integral over that spectral decomposition. The weight assigned to each frequency then represents the frequency-specific price of risk, and is entirely determined by the preferences of investors. For example, standard Epstein-Zin preferences imply that the weight of the pricing kernel lies almost entirely at extremely low frequencies, most of it on cycles longer than 230 years; internal habit-formation models imply that the weight is shifted to high frequencies. We estimate the frequency-specific risk prices for the equity market, focusing on economically interesting frequencies. Most of the pricing weight falls on low frequencies -corresponding to cycles longer than 8 years -broadly consistent with Epstein-Zin preferences.

Association, for some very helpful comments. Any errors are our own. Share prices generally fall when a firm announces a seasoned equity offering (SEO). A stan-dard explanation of this fact is that an SEO communicates negative information to investors. We show that if repeated capital market transactions are possible, this same asymmetry of information between firms and investors implies that some firms also repurchase shares in equilibrium. A subset of these firms directly profit from the repurchase transaction, while other firms repurchase in order to improve the terms of a subsequent SEO. The possibil-ity of repurchases reduces both SEOs and investment. Overall, our analysis highlights the importance of analyzing SEOs and repurchases in a unified framework. Share prices generally fall in response to a firm’s announcement of a seasoned equity offering (SEO).1 The standard explanation for this empirical regularity is that a firm has information that investors lack, and a SEO reveals to investors that the firm’s information is negative (see, in particular, Myers and Majluf (1984)). In equilibrium firms with negative information issue equity, and accept the negative share price response because the SEO