Is food consumption a good proxy for nondurable consumption?

This paper examines whether there is a discrepancy in estimating the elasticity of intertemporal substitution using food consumption instead of nondurable consumption data. We show that a discrepancy exists and that the discrepancy increases as nondurable consumption increases.     

A flexible approach to estimate the equity premium

In this article, we estimate the risk aversion for households accounting for their lifetime consumption risk. Households take into account the overall lifetime uninsured consumption risk when optimizing their resources, which based on micro data varies across households. Thus, representing households’ consumption by merging cross-sectional micro data into the single Euler equation (the common approach for estimating risk aversion based on consumption-based asset pricing theory) may be too rough an approximation, leading to biased results with respect to risk aversion. Our results suggest that consumption-based asset pricing models that were rejected in several studies do in fact fit the data when we account for households’ lifetime consumption risk. This finding also has implications for long-run aggregate consumption-based asset pricing models.     

Overeating in all-you-can-eat buffet: paying before versus paying after

A widespread meal-serving system commonly blamed for contributing to the obesity epidemic is the all-you-can-eat buffet, where customers can help themselves to as much food as they wish to eat in a single meal for a fixed entry price. We set forth the hypothesis that buffet restaurants’ practice of collecting the price in advance, rather than at the end of the meal, encourages overeating. Viewing advance payment as a token of disrespectful treatment, we first establish this result theoretically by extending two recent and competing models on buffet behaviour to take account of the customer’s treatment experience. We then report the results of two experiments conducted in a sushi restaurant which support our hypothesis. The experiments reveal, ceteris paribus, that paying for the buffet meal after eating reduces sushi consumption by about 4.5 units, as compared to paying before eating. The result bears a straightforward and simple policy implication: To help reduce obesity, buffet restaurants should be banned from collecting the price in advance.     

“Timing Is Everything” and Marital Bliss

We first show that in a marriage market, when the stability of a matching is disturbed when a new agent joins the game, natural greedy behavior defines an equilibration procedure that converges to a stable matching for the extended problem. We then consider the iterative procedure under which agents join the game sequentially, and the natural greedy procedure is applied after the entrance of each agent. It is shown that this procedure converges to a stable matching for the original (global) problem and that for each agent, if the order of all other agents is given, he/she weakly improves his/her final outcome by deferring his/her arrival time. The agent that arrives last gets his/her optimal outcome under stable matchings. Journal of Economic Literature Classification Numbers: C78, C62.     

Political activism,information costs,and stock market participation

This paper examines whether political activism increases people's propensity to participate in the stock market. Our key conjecture is that politically active people follow political news more actively, which increases their chance of being exposed to financial news. Consequently, their information gathering costs are likely to be lower and the propensity to participate in the market would be higher. We find support for this hypothesis using multiple micro-level data sets, state-level data from the US, and cross-country data from Europe. Irrespective of their political affiliation, politically active individuals are 9–25% more likely to participate in the stock market. Using residence in “battleground” states and several other geographic instruments, we demonstrate that greater political activism reduces information gathering costs and causes higher market participation rates. Further, consistent with our conjecture, we find that politically active individuals spend about 30 minutes more on news daily and appear more knowledgeable about the economy and the markets.     

Options as a Marketing Tool: Pricing a Promotional Scheme for a Product with a Secondary Market

Adding options to durable products allows new opportunities for manufacturers and retailers in markets with a secondary market to create better segmentation schemes, provide creative means to differentiate their products and services, and increase the value they offer consumers. This raises the need for sellers to properly price such options. This work presents a few examples of incentive programs for the car industry, develops models and calculates their cost to the seller, demonstrating the applicability of the proposed methodology. Our numerical results indicate that such options are surprisingly inexpensive for car manufacturers and dealers. Copyright © 2015 John Wiley & Sons, Ltd.     

Twitter use related to reality television characters: Association with increased marijuana use

In the United States, there are debates about marijuana legalization for either medical or recreational use. These debates may be reflected in traditional media, such as reality television, and through social media, such as Facebook or Twitter. We study the relationship of social media use for reality television topics and marijuana use. We surveyed 572 college students about marijuana use, demographic characteristics, reality television related Facebook and Twitter use, and other reality television variables. Logistic regression analyses studied the relationships of these variables to marijuana use. Following a reality television character on Twitter was significantly associated with increased odds for marijuana use. Reality television Facebook use was not significantly associated with marijuana use. In addition, women and Asian Americans were significantly associated with decreased odds for marijuana use. Those born in the United States were significantly associated with increased odds for marijuana use. Attitudes for reality television is fun, perceived realism of reality television, and behavior of watching a reality television program on health/medical topics were not associated with marijuana use. As following a reality television character on Twitter is significantly associated with increased odds for marijuana use, marketing campaigns can play a role with use of Twitter whether advocating for use or against use of marijuana. Marketing implications are provided regarding Twitter use for the various areas where marijuana use is either illegal or legal.     

Implementation of individually rational social choice functions with guaranteed utilities

A simple mechanism is presented that allocates an indivisible object between two agents for almost any possible compensation rule. Furthermore, the equilibrium strategy guarantees a level of utility not less than −ε, where ε can be arbitrarily small.     

The efficacy and efforts of interest groups in post elections policy formation

This paper presents a new model of interest groups and policy formation in the legislature. In our setting, the already given party ideological predispositions and power distribution determine the expected policy outcome. Our analysis applies to the case of un-enforced or enforced party discipline as well as to two-party and multi-party (proportional representation) electoral systems. The interest groups’ objective is to influence the outcome in their favor by engaging in a contest that determines the final decision in the legislature. Our first result clarifies how the success of an interest group hinges on the dominance of its ideologically closer party and, in general, the coalition/opposition blocks of parties under un-enforced party or coalition/opposition discipline. Such dominance is defined in terms of ideological inclination weighted by power. Our second result clarifies how the success of an interest group hinges on the dominance of its ideology in the ruling coalition (party) in a majoritarian system with enforced coalition (party) discipline. We then clarify under what condition an interest group prefers to direct its lobbying efforts to two parties or the two coalition and opposition blocks of parties under un-enforced discipline rather than to the members of the ruling coalition (party) under enforced discipline. The lobbying efforts under un-enforced and enforced party discipline are also compared. Finally, we clarify the effect of ideological predispositions and power on the efforts of the interest groups.     

Income hedging and portfolio decisions

We examine whether the decision to participate in the stock market and other related portfolio decisions are influenced by income hedging motives. Economic theory predicts that the market participation propensity should increase as the correlation between income growth and stock market returns decreases. Surprisingly, empirical studies find limited support for the income hedging motive. Using a rich, unique Dutch data set and the National Longitudinal Survey of the Youth (NLSY) from the United States, we show that when the income-return correlation is low, individuals exhibit a greater propensity to participate in the market and allocate a larger proportion of their wealth to risky assets. Even when the income risk is high, individuals exhibit a higher propensity to participate in the market when the hedging potential is high. These findings suggest that income hedging is an important determinant of stock market participation and asset allocation decisions.