OBESITY AND NUTRIENT CONSUMPTION: A RATIONAL ADDICTION?

Recent research shows that the dramatic rise in obesity in the United States is due more to the overconsumption of unhealthy foods than underactivity. This study tests for an addiction to food nutrients as a potential explanation for the apparent excessive consumption. A random coefficients (mixed) logit model is used to test a multivariate rational addiction model. The results reveal a particularly strong addiction to carbohydrates. The implication of this finding is that price-based policies, sin taxes, or produce subsidies that change the expected future costs and benefits of consuming carbohydrate-intensive foods may be effective in controlling excessive nutrient intake. ( JEL D120, I120, C230)     

Determinants of Decertification Activity: An Interstate Analysis

In this paper, a model of union decertification activity in the U.S. is estimated for 1960, 1970, 1975, and 1980. Cross-state data permit the use of regressors capturing the effects of demographic, political, and organizational factors not included in previous research on decertification. The estimated results confirm these effects. Tests for stability over the pooled sample periods 1960–1970 and 1975–1980 show some variability in the strength of the variables' effects.     

Audit Firm Tenure,Non‐Audit Services,and Internal Assessments of Audit Quality

We use data from internal assessments of audit quality in a Big 4 firm to investigate the impact of audit firm tenure and auditor‐provided non‐audit services (NAS) on audit quality. We find that first‐year audits receive lower assessments of audit quality and that quality improves shortly thereafter and then declines as tenure becomes very long. Partitioning our sample between SEC registrants and private clients, we find that the decline in audit quality in the long tenure range is attributable to audits of private clients. For audits of SEC registrants, the probability of a high quality audit reaches its maximum with very long tenure. We also find that audit fees are discounted for first‐year audits but auditor effort is higher than in subsequent years. We find no association, on average, between total NAS fees and audit quality in the full sample but observe that total NAS fees are positively associated with quality for SEC registrants and negatively associated with quality for privately held clients. Our findings are important for regulatory policies related to audit firm tenure and auditor‐provided NAS.     

CONSUMER SWITCHING COSTS AND FIRM PRICING: EVIDENCE FROM BANK PRICING OF DEPOSIT ACCOUNTS*

We employ extensive information on bank deposit rates and area migration patterns to examine pricing relationships implied by switching costs. We argue that, because of the trade‐off between attracting new customers and exploiting old ones, banks offer higher deposit rates in areas experiencing more in‐migration. Further, because greater out‐migration implies that a locked‐in customer will not be with the bank for as many periods, banks will offer lower deposit rates in areas exhibiting greater out‐migration. Also, because this effect of out‐migration logically depends on the extent of in‐migration, an interaction effect exists. We find evidence strongly supporting these relationships.     

Expected and reported division of responsibility of household tasks among older wives in two residential settings

Literature on sex roles encompasses numerous studies on the division of responsibility in late-life marriages. Some older wives report that they continue to assume responsibility for mos: household chores and they actually perform most tasks. Other wives claim that following retirement, husbands increase their participation within the household arena. However, the increase tends to be in the level of activity involvement rather than in assuming responsibility for new or non-traditional chores. The trend toward egalitarianism in later life, especially for happy couples, is documented by numerous studies. It appears that while role expectations are less gender-specific among older people, they tend to follow the patterns established during middle-age. However, the research is not conclusive. No analysis has compared different living environments of older couples. A sample (n = 244) or older wives (mean age 72 years) living in two different residential settings were questioned via a mailed survey about their responsibility and behaviours regarding 12 household tasks: cooking meals, washing dishes, doing yard work, washing clothes, maintaining the car, writing letters, scheduling family events, getting or earning money, cleaning house, shopping, undertaking household repairs and making family decisions. High scores suggest a non-traditional approach to sex-role tasks, while low scores suggest egalitarian relationships. The views that wives have of division of responsibility of household tasks is explored: who should take responsibility for tasks and who does the tasks? Variables previously found to influence sex-role beliefs are examined. In particular, relationships between sex roles and marital quality, length of marriage, family income, frequency of interaction with children, residential environment and health are presented.     

The Behavior of the Interest Rate Differential Between Tax-exempt Revenue and General Obligation Bonds: A Test of Risk Preferences and Market Segmentation

This paper presents evidence that the yield differential between revenue bonds and similar general obligation bonds varies contracyclically with the level of economic activity. The evidence also indicates that significant investor-borrower induced market segmentation exists in the municipal bond market. An increase in the relative demand by commercial banks for tax-exempt securities and/or an increase in the supply of revenue bonds relative to the supply of general obligation bonds increase the yield spread between the two classes of debt. These findings were the result of a series of empirical tests with both macroeconomic and microeconomic data.     

Robustness and U.S. Monetary Policy Experimentation

We study how a concern for robustness modifies a policymaker's incentive to experiment. A policymaker has a prior over two submodels of inflation‐unemployment dynamics. One submodel implies an exploitable trade‐off, the other does not. Bayes' law gives the policymaker an incentive to experiment. The policymaker fears that both submodels and his prior probability distribution over them are misspecified. We compute decision rules that are robust to misspecifications of each submodel and of the prior distribution over submodels. We compare robust rules to ones that Cogley, Colacito, and Sargent (2007) computed assuming that the models and the prior distribution are correctly specified. We explain how the policymaker's desires to protect against misspecifications of the submodels, on the one hand, and misspecifications of the prior over them, on the other, have different effects on the decision rule.     

Inflation Persistence, Monetary Policy, and the Great Moderation

There is growing evidence that the empirical Phillips curve within the United States has changed significantly since the early 1980s. In particular, inflation persistence has declined sharply. This paper demonstrates that this decline is consistent with a standard dynamic New Keynesian (DNK) model in which: (i) the variability of technology shocks has declined and (ii) the central bank more aggressively responds to inflation.