This paper develops a multiple-discrete choice model for the analysis of demand of differentiated products. Users maximize profits by choosing the number of units of each brand they purchase. Multiple-unit as well as multiple-brand purchases are allowed. These two features distinguish this model...

Liquidity constraints and, more generally, imperfections in credit markets, can be extremely important for the intertemporal allocation of consumption and have received a substantial amount of attention in the theoretical and empirical literature on consumption. In the first part of the paper I...

For thirty years, it has been accepted that consumption is smooth because permanent income is smoother than measured income. This paper considers the evidence for the contrary position, that permanent income is in fact less smooth than measured income, so that the smoothness of consumption...

The special legal status of Indian tribes in the U.S. means that state excise taxes are not necessarily collected on cigarette purchases on Indian reservations. We focus on two under-studied but basic empirical economic questions this raises. Using novel data from New York surveys that asked...

Temporary price reductions (sales) are common for many goods and naturally result in large increases in the quantity sold. Demand estimation based on temporary price reductions may mis-measure the long run responsiveness to prices. In this paper we quantify the extent of the problem and assess...

How significant are individual differences in self-control? Do these differences impact wealth accumulation? From where do they derive? Our survey-based measure of self-control provides insights into all three questions: 1.There are individual differences in self-control not only of a...

Previous research finds a systematic decrease in consumption at retirement, a finding that is inconsistent with the Life-Cycle/Permanent Income Hypothesis if retirement is an expected event. In this paper, we use workers' subjective beliefs about their retirement dates as an instrument for...

We present evidence that many households have only a vague notion of what they are spending on various consumption items. We then develop a life-cycle model that captures this absent-mindedness'. The model generates precautionary spending, whereby absent-minded agents tend to consume more than...

The simple one-good model of life-cycle consumption requires consumption smoothing.' However, British and U.S. households apparently reduce consumption at retirement and the reduction cannot be explained by the life-cycle model. An interpretation is that retirees are surprised by the inadequacy...

This paper examines how compensation packages change when health insurance premiums rise. We use data on employee choices within a single large firm with a flexible benefits plan; an increasingly common arrangement among medium and large firms. In these companies, employees explicitly choose how...