Logconcave functions represent the current frontier of efficient algorithms for sampling, optimization and integration in Rn [LV06a]. Efficient sampling algorithms to sample according to a probability density (to which the other two problems can be reduced) relies on good isoperimetry which is known to hold for arbitrary logconcave densities. In this paper, we extend this frontier in two ways: ...

Endogeneous Household Interaction Most econometric models of intrahousehold behavior assume that household decisionmaking is efficient, i.e., utility realizations lie on the Pareto frontier. In this paper we investigate this claim by adding a number of participation constraints to the household allocation problem. Short-run constraints ensure that each spouse obtains a utility level at least eq...

In this paper, we propose a discrete-time model for mean-variance portfolio selection. One of the distinct features is that the system under consideration is a Markov modulated system. We show that under suitable conditions and scaling, the process of interest goes to a switching diffusion limit. Related issues on optimal strategies and efficient frontier will also be mentioned.

This paper concerns a continuous-time portfolio selection problem with inflation in an incomplete market. By using the approach of more general stochastic linear quadratic control technique (SLQ), we obtain the optimal strategy and efficient frontier to this problem. Furthermore, a numerical example is also provided.

Winning bids in reverse auctions are efficient solutions (providing that fairly weak assumptions about the bidders are met). The auctions are efficient, un‐der the assumption that the utilities of all participants are quasi‐linear. This assumption is often unrealistic. Typically then, auctions are inefficient mechanisms. This paper presents the limitations and impracticability of the quasi‐ lin...

abstractgiven the importance of the notion of efficiency in the country's economic growth, measuring the efficiency and the technology gap for various industries in order to achieve the best possible resource assignment, following the declared policy goals, is of particular importance for those countries, such as iran, which are now at the early stages of the industrialization process. hen...

Currently more and more agents are involved in human routine activities and a mixed human-agent society is thus formed by the humans and the agents involved. The relationship between humans and agents in this mixed society is subtle and it is vital to explore the influence that agents bring into the society. In this paper, we try to investigate a few questions: will humans act differently towar...

Let X1,X2, . . . , be independent random variables with EXi = 0 and write Sn = ∑ n i=1 Xi and V 2 n = ∑ n i=1 X i . This paper provides an overview of current developments on the functional central limit theorems (invariance principles), absolute and relative errors in the central limit theorems, moderate and large deviation theorems and saddle-point approximations for the self-normalized sum S...