The objective of this study is two-fold: First, we test the goodness of fit of different diffusion models that include the variable ¿distribution¿, and we then analyze the existence of the effects "country" and "time" in the parameters of diffusion currently employed in different European...

The objective of this study is to contrast the effects of market share and industrial conditions on the performance of companies, basing our evaluations on their stock value and their resources. The basichypotheses are: i) That an increase in market share that isn't supported by changes in the...