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)....

With the aim of analysing the seasonality of the Spanish and American film industries, a comparative analysis was made between variables such as release dates in cinemas, and trends in audience figures. The results show that Spanish films have a higher seasonality level than American ones, and...