Los modelos que intentan explicar la diferencia de 6% entre el retorno de los activos riesgosos y los libres de riesgo subestiman la probabilidad de ocurrencia de eventos inusuales en la economía. En este trabajo se ...

Varios estudios realizados en diversos países verifican, en contradicción con la teoría económica, una relación negativa entre retornos accionarios e inflación. El objeto del presente trabajo es investigar la relación entre ...

Researchers have identi ed many patterns in average stock returns which are not explained by the Capital Asset Pricing Model (CAPM) de- veloped by Sharpe (1964) and Lintner (1965). Such patterns are called anomalies and ...

This paper suggests that the models which try to explain the equity premium puzzle underestimate rare economic events. The stochastic nature of the model increases the probability of far-from the mean output levels. A ...

The following work presents the study of a closed-loop supply chain problem, considering a single product with returns in the same period and in a subsequent period, considering only a deterministic model. The paper proposes ...

Hematopoietic stem cells (HSC) travel from bone marrow to peripheral blood and vice versa. We believe that this travel process is crucial for the cells to maintain their stem characteristics and for allowing the homogeneous ...