We provide two, new simple proofs of Afriat's celebrated theorem..

In this paper, we adopt the collective approach to consumer behavior --- which supposes that each household member is characterized by his/her own preferences and the decision process results in Pareto-efficient outcomes --- and assume, in addition, that agents are egoistic and consumption is...

This paper investigates how conditional quantiles of a given distribution relate to each other. Given two conditional quantiles estimated nonparametrically, we investigate their relation by linking them through a parametric transformation. Asymptotic normality of the associated parameter vector...

This paper models the supply of perishable goods within a randon framework. Perishability affects a large group of goods usually traded in the economy such as fruits and vegetables, newspapers, medicine drugs, a.s.o.. Surprisingly, one cannot find in the literature a decision model for suppliers...

A "dispersion" specifies the relative probability between any two elements of a finite domain. It thereby partitions the domain into equivalence classes separated by infinite relative probability. The paper's novelty is to numerically represent not only the order of the equivalence classes, but...

This paper develops a monopolistic competition model to study the characteristics of products, such as quality improvement and product diversity (function-specialization and individualization), and the division of labor in production. Different from the ordinary economic model, our utility...

Empirical evidences tell us that in the recent years the expansion period is increased with reduction of the contraction period in the U.S. business cycles. Moreover, the business cycles in the United States also show the trend to be moderated with recent economic growth induced and supported by...

Certain problems in comparative statics, including (but not exclusively) certain problems in consumer theory, cannot be easily addressed by the methods of lattice programming. One reason for this is that there is no order on the choice space which orders choices in a way which conforms with the...

The well-behaved (downward sloping and consistent to the consumer surplus) Marshallian demand function forms a basis of the partial equilibrium analysis both in positive and normative perspectives, since the downward slopness and some other regularity conditions imply that there exists a...

In this paper we consider a model where some consumers act in a boundedly rational way by treating money as non-fungible (Kahneman and Tversky (1979) and (1984), Thaler (1987) and (1990). The budget is broken up into different expenditure groups (cookie-jars). Given the amount of resources...