Tullio Jappelli

Information Sharing, Lending and Defaults: Cross-Country Evidence

Theory predicts that information sharing among lenders attenuates adverse selection and moral hazard, and can therefore increase lending and reduce default rates. Using a new, purpose-built data set on private credit bureaus and public credit registers, we find that bank lending is higher and credit risk is lower in countries where lenders share information, regardless of the private or public nature of the information sharing mechanism. We also find that public intervention is more likely where private arrangements have not arisen spontaneously and creditor rights are poorly protected. JEL Classification: D82, G21, G28.

Courts and Banks: Effects of Judicial Enforcement on Credit Markets

The cost of enforcing contracts is a key determinant of market performance. We document this point with reference to the credit market in a model of opportunistic debtors and inefficient courts. According to the model, improvements in judicial efficiency should reduce credit rationing and increase lending, with an ambiguous effect on interest rates that depends on banking competition and on the type of judicial reform. These predictions are supported by panel data on Italian provinces and by cross-country evidence. In Italian provinces with longer trials or large backlogs of pending trials, credit is less widely available. International evidence also shows that the depth of mortgage markets is inversely related to the costs of mortgage foreclosure and other proxies for judicial inefficiency.

Information Sharing and Credit: Firm-Level Evidence from Transition Countries

We investigate whether information sharing among banks has affected credit market performance in the transition countries of Eastern Europe and the former Soviet Union, using a large sample of firm-level data. Our estimates show that information sharing is associated with improved availability and lower cost of credit to firms. This correlation is stronger for opaque firms than transparent ones and stronger in countries with weak legal environments than in those with strong legal environments. In cross-sectional estimates, we control for variation in country-level aggregate variables that may affect credit, by examining the differential impact of information sharing across firm types. In panel estimates, we also control for the presence of unobserved heterogeneity at the firm level, as well as for changes in macroeconomic variables and the legal environment.

Household Stockholding in Europe: Where Do We Stand and Where Do We Go?

We discuss the current state of stockownership among households in major European countries (France, Germany, Italy, the Netherlands, Sweden, and the UK), drawing parallels and contrasts with the US experience. We use detailed microeconomic datasets and explore the extent to which observed international differences in stockholding can be attributed to differences in household characteristics. Statistical analysis finds (1) an increase in stock market participation in all countries; (2) persistent differences across countries, with the US, the UK and Sweden having considerable more participation than France, Germany, Italy; (3) a robust correlation between the participation decision on the one hand, and wealth and education on the other; (4) a relatively small effect of education and wealth on the asset share invested in stocks, conditional on participation. Interestingly, international differences in stock market participation remain large even when we control for household characteristics. As our empirical results point to the relevance of participation costs, we probe into a number of indicators of such costs, and we find that these are consistent with the observed pattern of participation across countries. Since the lowering of such costs brings into the market households with different characteristics than incumbents, we discuss their likely impact, policy concerns, and types of policies that could mitigate their adverse impact on the future workings of the market.

Financial Market Imperfections and Home Ownership: A Comparative Study

We explore the determinants of the international pattern of home ownership using the Luxembourg Income Study (LIS), a collection of microeconomic data on fourteen OECD countries. In most, the cross-section is repeated over time and includes several demographic variables carefully matched between the different surveys. This allows us to construct a truly unique international dataset, merging data on more than 400,000 households with aggregate panel data on mortgage loans and down payment ratios. After controlling for demographic characteristics, country effects, cohort effects and calendar time effects, we find strong evidence that the availability of mortgage finance - as measured by outstanding mortgage loans and down payment ratios - affects the age-profile of home ownership, especially at the young end. The results have important implications for the debate on the relationship between saving and growth.

Testing for Liquidity Constraints in Euler Equations with Complementary Data Sources

Previous tests for liquidity constraints using consumption Euler equations have frequently split the sample on the basis of wealth, arguing that low-wealth consumers are more likely to be constrained. We propose alternative tests using different and more direct information on borrowing constraints obtained from the 1983 Survey of Consumer Finances. In a first stage we estimate probabilities of being constrained, which are then utilized in a second sample, the Panel Study of Income Dynamics, to estimate switching regression models of the Euler equation. Our estimates indicate stronger excess sensitivity associated with the possibility of liquidity constraints than the sample splitting approach.

The Demand for Money, Financial Innovation, and the Welfare Cost of Inflation: an Analysis with Household Data

We use microeconomic data on households to estimate the parameters of the demand for currency derived from a generalized Baumol‐Tobin model. Our data set contains information on average currency, deposits, and other interest‐bearing assets; the number of trips to the bank; the size of withdrawals; and ownership and use of ATM cards. We model the demand for currency accounting for adoption of new transaction technologies and the decision to hold interest‐bearing assets. The interest rate and expenditure flow elasticities of the demand for currency are close to the theoretical values implied by standard inventory models. However, we find significant differences between individuals with an ATM card and those without. The estimates of the demand for currency allow us to calculate a measure of the welfare cost of inflation analogous to Bailey’s triangle, but based on a rigorous microeconometric framework. The welfare cost of inflation varies considerably within the population but never turns out to be very large (about 0.1 percent of consumption or less). Our results are robust to various changes in the econometric specification. In addition to the main results based on the average stock of currency, the model receives further support from the analysis of the number of trips to and average withdrawals from the bank and the ATM.

Financial advisors: A case of babysitters?

We use two data sets, one from a large brokerage and another from a major bank, to ask: (i) whether financial advisors are more likely to be matched with poorer, uninformed investors or with richer and experienced investors; (ii) how advised accounts actually perform relative to self-managed accounts; (iii) whether the contribution of independent and bank advisors is similar. We find that advised accounts offer on average lower net returns and inferior risk-return tradeoffs (Sharpe ratios). Trading costs contribute to outcomes, as advised accounts feature higher turnover, consistent with commissions being the main source of advisor income. Results are robust to controlling for investor and local area characteristics. The results apply with stronger force to bank advisors than to independent financial advisors, consistent with greater limitations on bank advisory services.

Economic Literacy: An International Comparison

This article uses international panel data on 55 countries from 1995 to 2008, merging indicators of economic literacy with a large set of macroeconomic and institutional variables. Results show that there is substantial heterogeneity of financial and economic competence across countries, and that human capital indicators (PISA test scores and college attendance) are positively correlated with economic literacy. Furthermore, inhabitants of countries with more generous social security systems are generally less literate, lending support to the hypothesis that the incentives to acquire economic literacy are related to the amount of resources available for private accumulation.

Private Transfers, Borrowing Constraints and the Timing of Homeownership

The 1991 Italian Survey of Household Income and Wealth contains retrospective information on intergenerational transfers. This information is used to estimate the impact of transfers on the saving time required to purchase a house. It is found that transfers have a small impact on saving time and that after receiving a transfer households purchase considerably larger homes. The results have implications for the debate about the source of the relation between aggregate saving and growth.