Sea turtle interactions with the longline fishery in Hawaii have become a serious concern in recent years. Various measures, including a swordfish harvest ban, have been adopted to protect sea turtles. This study explores the factors and degree of sea turtle interactions with Hawaii’s pelagic longline fishery, i.e. the production of undesirable outputs in the pursuit of an economic activity, in...

We study a sparse negative binomial regression (NBR) for count data by showing the non-asymptotic advantages of using elastic-net estimator. Two types oracle inequalities are derived NBR's estimates Compatibility Factor Condition and Stabil Condition. The second type inequality is random design can be extended to many $\ell_1 + \ell_2$ regularized M-estimations, with corresponding empirical pro...