Global warming forces consumer and corporate activities towards sustainability. During Covid-19, online shopping relevance also increased significantly. Anyway, there is no present research critically reviewing sustainability in online shopping directly. This research gap is filled with a...

American households have received a triple dose of bad news since the beginning of the current recession: The greatest collapse in asset values since the Great Depression, a sharp tightening in credit availability, and a large increase in unemployment risk. We present measures of the size of...

Although rational consumers without bequest motives are better oÞ investing exclusively with annuitized instruments in partial equilibrium, we demonstrate the welfare effect of annuitization is ambiguous in general equilibrium on account of the pecuniary externality. Accidental bequests improve...

Dybvig [1995] finds optimal spending and investment strategies for a perpetual endowment that has no tolerance for spending declines. His spending rule is a ratchet --- spending never decreases, but has a substantial chance of increasing. We find the ratchet consumption rule for an investor with...

Dynamic pricing is a standard practice that sellers use for revenue management. With the vast availability of pricing and inventory data on the Internet, it is possible for consumers to become aware of the pricing strategies used by sellers and to develop strategic responses. In this paper, we...

Antoniadou (2004a) laid the foundations of the methodology for using lattice programming to study comparative statics in the consumer problem. The definition of income effects gives rise to a class of partial orders called value orders. This paper carries the analysis further by showing how...

We study the consumption and portfolio selection problem of an agent who faces consumption irreversibility: there is disutility from changing consumption levels. The derived preference exhibits intertemporal loss aversion toward consumption changes with the previous consumption level being the...

Wealth uncertainty may be resolved before consumption in which case consumption is optimal. But if uncertainty remains at the consumption level, after allocative decisions are made, ex post relative consumption is suboptimal. Therefore, ex ante the consumer has to balance attitudes to risk with...

The paper studies comparative statics in the classical consumer expenditure minimization problem, without recourse to differentiability and convexity assumptions. It extends the revealed preference approach by embedding the problem in a lattice theoretic framework. The analysis is discrete, the...

This paper investigates the impact of social preferences and information about the value chain on the willingness to pay (WTP) for Fair-trade products. More specifically, the perceived social and economic benefits for Fair-trade farmers are analyzed in order to study whether altruistic...