Tobacco price increases, such as through taxation, are an effective strategy to reduce smoking prevalence, however this strategy is undermined by both discount and contraband tobacco.1 The discount cigarette market has grown substantially since 2003, with discount cigarettes selling for approximately $10-15 less per carton than premium brands.2 The illegal sale of contraband cigarettes has beco...

What discount rate should be applied to social investments? It is standard to use the market interest rate, thereby respecting private preferences. We show that application of this “revealed preference” criterion rests on faith, not logic. It is justified only if preferences over all choices, including past choices, are time invariant. The conditions for this to be true are stringent. Under mor...

In this paper, we characterize the players’ behavior in stock market by repeated game model with asymmetric information. We show that discount price process of is a martingale driven Brownian motion, and give an endogenous explanation for random fluctuation price: randomizations due to strategy informed player which hopes avoid revealing his private On basis, through studying corresponding opti...

BACKGROUND The present study aimed to provide better insight on methodological issues related to time preference studies, and to estimate private and social discount rates, using a rigorous systematic review and meta-analysis. METHODS We searched PubMed, EMBASE and Proquest databases in June 2013. All studies had estimated private and social time preference rates for health outcomes through s...

Alternative policy options available to northern Benguela fisheries managers were explored using Ecopath with Ecosim. Scenarios were tested for optimizing the discounted profit from the fisheries in the ecosystem, maximizing the jobs that can be provided by the fisheries, maximizing a measure of ecosystem status, and analyzing tradeoffs between these management options. Additionally, two differ...

We elicit measures of individual discount rates from a representative sample of the Danish population and test two substantive hypotheses. The first hypothesis is that smokers have higher individual discount rates than non-smokers. The second hypothesis is that smokers are more likely to have time inconsistent preferences than non-smokers, where time inconsistency is indicated by a hyperbolic d...

In recessions, the stock market falls more than in proportion to corporate profit. The discount rate implicit in the stock market rises. All types of investment fall, including employers’ investment in job creation. According to the leading view of unemployment—the Diamond-Mortensen-Pissarides model—when the incentive for job creation rises, the labor market tightens and unemployment falls. Emp...