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How Much Can Financial Literacy Help?

Review of Finance 2015 19(4), 1347-1382
We use a dataset of individual investors containing test-based measures of financial literacy and administrative records on their assets holding and trades before and during the financial crisis of September 2008. We design three tests of the benefits of financial literacy during the Global Financial Crisis, by comparing the decisions actually taken by individuals with a dominated alternative, i.e., one giving lower utility according to simple normative models of financial decision-making. We find that high-literacy investors are better at timing the market. High-literacy investors are also more likely to trade according to the prescriptions of normative models and to detect intermediaries’ potential conflicts of interest. However, though statistically significant, these effects are economically small.

Awareness and Stock Market Participation

Review of Finance 2005 9(4), 537-567
The paper documents lack of awareness of financial assets in the 1995 and 1998 Bank of Italy Surveys of Household Income and Wealth. It then explores the determinants of awareness, and finds that the probability that survey respondents are aware of stocks, mutual funds and investment accounts is positively correlated with education, household resources, long-term bank relations and proxies for social interaction. Lack of financial awareness has important implications for understanding the stockholding puzzle and for estimating stock market participation costs.

Income Risk, Borrowing Constraints, and Portfolio Choice

American Economic Review 1996 86(1), 158-172
Economic theory suggests that uninsurable income risk and the expectation of future borrowing constraints can reduce the share of risky assets in a household's portfolio. If the utility function exhibits decreasing absolute risk aversion and decreasing prudence, an individual will reduce his exposure to rate of return risks when confronted with other independent risks. If there are transaction costs, the expectation of future borrowing constraints should induce individuals to keep a lower proportion of their wealth in the form of illiquid and risky assets. We find support for these propositions in a cross-section of Italian households

From patriarchy to partnership: Gender equality and household finance

Journal of Financial Economics 2023 147(3), 573-595 open access
We obtain a model-driven measure of gender norms on intra-household financial decision making by leveraging dramatic variation across Italian cohorts and regions in the gender of the household head. We use these estimates to identify the effects of gender parity on household financial decisions. More egalitarian norms increase household participation in financial markets, equity holdings, asset diversification, and returns on investments . This evidence suggests that gender roles can have large economic costs . Consistent with this view, we show that patriarchal norms began receding in the early 1990s, when a pension reform made it too costly to comply with traditional roles.

Learning Entrepreneurship from Other Entrepreneurs?

Journal of Labor Economics 2021 39(1), 135-191 open access
We document that individuals who grow up in high firm density areas are more likely to become entrepreneurs, given firm density in their current location, and to run businesses in the sector with the highest density when young. Firm density at an entrepreneur’s young age drives current firm profitability and is more important than current density for business performance. Results hold in a sample of movers, which allows addressing endogeneity concerns. These results are consistent with entrepreneurial skills being partly learnable through social contacts. Accordingly, entrepreneurs who grow up in high firm density areas adopt better managerial practices.

The Supply Side of Household Finance

Review of Financial Studies 2019 32(10), 3762-3798
[Using matched borrower-lender data, we document strong nonprice supplier effects in mortgage contract choice. For given relative price of adjustable and fixed rate mortgages, households borrowing from banks hit by shocks to the cost of long term funding, or to the deposits base or to access to securitization are more likely to choose adjustable rate mortgages. Supply factors have larger effects on less-sophisticated households and at times of price inaction. A model in which banks affect borrowers’choices through prices and distorted advice predicts these findings. We contrast the distorted advice interpretation of the evidence against the potential alternative nonprice channels.]

Marriage, Assortative Mating and Wealth Inequality

Review of Economic Studies 2026
We use population data on capital income and wealth holdings for Norway to measure asset positions and wealth returns before individuals marry and after the household is formed. These data allow us to establish a number of novel facts. First, individuals sort on personal wealth rather than parental wealth. Second, people match also on their personal returns to wealth and assortative mating on returns is as strong as that on wealth. Third, post-marriage returns on family wealth reflect in equal part the pre-marriage returns of the two spouses. However, for households at the top of the wealth distribution at marriage, family wealth is largely managed by the spouse with the highest potential to grow it, providing a microfoundation for the scale dependence in wealth returns documented in several empirical papers. Fourth, marriage lowers the degree of wealth inequality as well as the heterogeneity in returns relative to the counterfactual case of no marriages. We use a simple framework to illustrate how the inequality-attenuating role of marriage is affected by assortative mating on wealth and returns and by wealth management task allocation between spouses.

Portfolio choices, firm shocks and uninsurable wage risk

Review of Economic Studies 2017 85(1), 437-474 open access
Assessing the importance of uninsurable wage risk for individual financial choices faces two challenges. First, the identification of the marginal effect requires a measure of at least one component of risk that cannot be diversified or avoided. Moreover, measures of uninsurable wage risk must vary over time to eliminate unobserved heterogeneity. Second, evaluating the economic significance of risk requires knowledge of the size of all the wage risk actually faced. Existing estimates are problematic because measures of wage risk fail to satisfy the "non-avoidability" requirement. This creates a downward bias which is at the root of the small estimated effect of wage risk on portfolio choices. To tackle this problem we match panel data of workers and firms and use the variability in the profitability of the firm that is passed over to workers to obtain a measure of uninsurable risk. Using this measure to instrument total variability in individual earnings, we find that the marginal effect of uninsurable wage risk is much larger than estimates that ignore endogeneity. We bound the economic impact of risk and find that its overall effect is contained, not because its marginal effect is small but because its size is small. And the size of uninsurable wage risk is small because firms provide substantial wage insurance.