Answering to an open question of Herings et al. (see [3]), one extends their fixed point theorem to mappings defined on convex compact subset of Rn, and not only polytopes. Such extension is important in non-cooperative game theory, where typical strategy sets are convex and compact. An...

We introduce a generalized coercivity type condition for set-valued maps defined on topological spaces endowed with a generalized convex structure and we extend the Fan's matching theorem.

Changes in the parameters of an n-dimensional system of equations induce changes in its solutions. For a class of such systems, we determine the qualitative change in solutions given certain qualitative changes in parameters. Our methods and results are elementary yet useful. They highlight the...

In productivity analysis an important issue is to detect how external (environmental) factors, exogenous to the production process and not under the control of the producer, might influence the production process and the resulting efficiency of the firms. Most of the traditional approaches...

The objective of this study is to examine the extent to which benefits received from the Unemployment Insurance Program displace assistance that the unemployed receive from their extended family. Using data from a supplement to the Panel Study of Income Dynamics, it is found that the unemployed...

The paper documents constructing a 2001 social accounting matrix for Tajikistan in order to develop a model of the country. As necessary and reliable statistics are difficult to obtain for compiling a social accounting matrix, alternative techniques and approaches have been used to extend,...

We examine the OLG model of Reichlin (1986). By using the Helleman's method (1980), we show that the difference equation of the model can be locally studied from the Feigenbaum equation. We can then explain the existence of endogenous fluctuations acording to the productivity level and the...

A price rise signifies a fall in purchasing power, if there is no commensurate increase in income. Thus the pertinent question in the face of the phenomenal rise during the 1990s in the prices of the food articles, which account for a major chunk of the total expenditure of the poor, is whether...

Three methods have been developed by the authors for solving optimal experimentation problems. David Kendrick (1981, 2002, Ch.10) uses quadratic approximation of the value function and linear approximation of the equation of motion to simulate general optimal experimentation (active learning)...