studies. Four buyer-supplier control configurations are proposed in a matrix according to the reciprocal dependence between …

buying firm (in terms of reciprocal dependence between the buyer and its suppliers). For each configuration, a type of …

process or on behaviour), depending on the power - dependence relationship with its supplier. Moreover, the development of …

.Otherwise, copulas are a statistic tool to model the dependence in a realistic and less restrictive way,taking better account of the … stylized facts in finance.This paper is a practical implementation of the copulas theory to model dependence between differen …" period and a period during which the market trend is downward. Our approach based on copulas allows us to determine the …