Considerable attention has been recently paid to the use of surrogate endpoints in clinical research. We deal with the situation where the two endpoints are both right censored. While proportional hazards analyses are typically used for this setting, their use leads to several complications. In...

This survey has the purpose to prove as and how much the volume of exported sugar by Santos port interferes in the freight value negotiated for fertilizer distribution for the final customer, in São Paulo State. For people who are directly connected to fertilizer logistic, it is very important...

Can the yield spread, which has been found to predict with surprising accuracy the movement of key macroeconomic variables of developed countries, also predict such variables for an emerging country. This paper is an attempt to answer empirically this question for the Tunisian economy. It also...

Can the yield spread, which has been found to predict with surprising accuracy the movement of key macroeconomic variables of developed countries, also predict such variables for an emerging country. This paper is an attempt to answer empirically this question for the Tunisian economy. It also...

This dissertation consists of two parts. The first part introduces a neural network approach that is used to forecast the conditional probability density function of asset returns. The model is unified with the idea of Arbitrage Pricing Theory (APT). In the second part, an algorithm called...

The objective of the study conducted by the authors is the analysis of the impact of two indicators - the total value of investments and the real cost of labor - on the indicator total employability, in the current economic context, marked by the COVID-19 pandemic. To achieve this goal, the...