The classical APT model is of the form r j - E(r j) = beta j(I - EI) + epsilon j, where r j - E(r j) is the earning deviation (called basic ariance-profit) of the security j, I is a common factor. This paper considers the impact on the securities return caused by the skewness and kurtosis of the...

It is frequently believed, in a quite schizophrenic fashion, that a theory of value must just solve the question of "relative prices" (a microeconomic problem), being mainly the theory of money the piece needed for determining the absolute or monetary level of prices (a macroeconomic problem)....

Tourism or the hospitality industry is among those economic activities that apart from realizing direct economic profits, it directly or indirectly impacts on the development of many other industries. Tourism through the tourist movements has a major impact on the geographical space, this effect...

Der Autor betont, dass 2009 neben dem 200. Geburtstag von Charles Darwin als zweites Jubiläum an das Erscheinen der "Theory of Moral Sentiments" von Adam Smith vor 250 Jahren zu erinnern ist. Ausgehend davon, dass sich Darwin selbst mit Robert Malthus auf einen Klassiker der Ökonomen berief,...

This research aims to find the determinants of participation on social organizations in Chile through a social capital approach, as well as to evaluate the existence of a positive effect between participation and household welfare. In the case of economic and local organizations several...

In the present paper an analysis of the neo-classical optimization model with linear constraints is proposed. By introducing the dual problem it is shown that the solution to the maximization problem is also a solution to the minimization problem. The purely theoretical model proposes a...