  Organizations interact with the environment and with other organizations, and
these interactions constitute an important way of learning and evolution. To
overcome the problems that they face during their existence, organizations must
certainly adopt survival strategies, both individually and in group. The aim of
this study is to evaluate the effect of a set of prognostic factors
(organizational, size, collaborate strategies, etc.) in the survival of
organizational networks. Statistical methods for time to event data were used
to analyze the data. We have used the Kaplan-Meier product-limit method to
compute and plot estimates of survival, while hypothesis tests were used to
compare survival times across several groups. Regression models were used to
study the effect of continuous predictors as well as to test multiple
predictors at once. Since violations of the proportional hazards were found for
several predictors, accelerated failure time models were used to study the
effect of explanatory variables on network survival.
