Bias in estimates of discrimination and default in mortgage lending: The effects of simultaneity and self-selection

The common practices of estimating single-equation models of mortgage rejection to test for discrimination in mortgage markets or single-equation ex ante mortgage default equations to validate underwriting criteria produce biased and inconsistent parameter estimates. This is due to problems of simultaneous equations bias which arise because, in a world of imperfect information, mortgage terms are not exogenous to the rejection or default decision. In addition, mortgage default estimates are also subject to selection bias. Monte Carlo experiments are used to study the nature and extent of likely bias in single-equation estimation results. We find that rejection equation estimates indicate discrimination when none exists and that estimated coefficients of mortgage terms, such as the loan-to-value ratio, are also subject to significant bias in both rejection and default equations.     

MUTUAL FUND MORTALITY, 12B‐1 FEES,AND THE NET EXPENSE RATIO

The Securities and Exchange Commission is currently reviewing Rule 12b‐1, which governs how fund advisors may pay for the distribution of fund shares. We provide evidence that even after adjusting for economies of scale, funds with 12b‐1 fees have higher expense ratios net of the 12b‐1 fees than do funds without such fees. This finding suggests that 12b‐1 fees are more than just a deadweight cost. We also demonstrate that 12b‐1 fees are highest for funds that ultimately fail, that the proportion of funds with 12b‐1 fees is increasing over time, and that the level of those fees is also increasing over time.     

State lotteries and externalities to their participants

The degree of participation in state lotteries can either increase or decrease expected returns. It is theoretically possible for unfair bets to become more than fair as participation in lotteries changes. In addition, the purchase of every combination of numbers can be more than a fair bet and such a purchase may increase the expected return to other lottery players.     

The relation between national cultural dimensions and tax evasion

Although penalties and audits exist, tax evasion is a widespread phenomenon and continues to be a problem for many countries. National culture may contribute to a further understanding of intentional noncompliance across countries. In this study, we investigate the influence of national culture on tax compliance levels across 50 countries. Using Hofstede's (1980) cultural framework as a basis for our hypotheses, we find that a noncompliant country's profile is characterized by high uncertainty avoidance, low individualism, low masculinity, and high power distance. Our results have implications for both research and practice. This is the first study to employ Hofstede's cultural framework as an explanator of international tax compliance diversity and serves as the starting point for the development of an international tax compliance framework. Tax policy implications also are addressed.