It is not unusual in real-life that one has to choose among …nitely many alternatives when the merits of each alternative are not perfectly known. A natural rule is then to choose the alternative which “looks”best. We show that a version of the monotone likelihood ratio property is su¢ cient, and also essentially necessary, for this decision rule to be optimal. We also analyze how the precision...

background and purpose: multiple choice tests are the most common type of tests used in evaluating the general english knowledge of the students in most medical universities, however the efficacy of these tests are not examined precisely. we compare and examine the integrative tests and discrete point tests as   measures of the english language knowledge of medical students. methods: three test...

Climate change and uncertain economies challenge small Native communities of the North American Arctic, with their reliance on local fish and wildlife resources. Methodological boundaries of single-discipline analyses limit the contribution of academic research to the real-world questions facing Arctic residents. Oversimplified assumptions and lack of data hamper mainstream economic approaches ...

This paper proposes a rank-based estimator for a location parameter in the binary choice model under a monotonic index and symmetry condition, given an initial Jnconsistent estimator for the slope parameter. The estimator converges at the usual parametric rate. Compared with existing estimators, no nonparametric smoothing is needed here. A small Monte Carlo study illustrates the usefulness of t...

Many of the existing methods for evaluating an airline’s on-time performance are based on flight-centric measures of delay. However, recent research has demonstrated that passenger delays depend on many factors in addition to flight delays. For instance, significant passenger delays result from flight cancellations and missed connections, which themselves depend on a significant number of facto...

Considerably less research has been done on modeling freight demand with disaggregate discrete models than on modeling passenger demand. The principal reason for this imbalance is the lack of freight demand data. Freight demand characteristics are expensive to obtain and are sometimes confidential. This paper analyzes the freight demand characteristics that drive modal choice by means of a larg...

In this paper we study the economic determinants of the joint retirement process of married couples. We propose a tractable dynamic discrete choice model for retirement decisions which allows for non-trivial saving behaviour. We estimate the model on a 1% sample of Danish couples of potential retirement age drawn from a population-based administrative register. The introduction and subsequent r...

We present a structural model of political advertising in equilibrium. Candidates choose advertising across media markets in order to maximize the probability of winning the national election. The voter model takes the form of an aggregate random coefficients discrete choice model in which advertising affects a voter's incentive to vote for either candidate or not to vote at all. We estimate th...