Macedo, Pedro; Silva, Elvira; Scotto, Manuel - In: Journal of Productivity Analysis 41 (2014) 1, pp. 131-140
Although the theory of state-contingent production is well-established, the empirical implementation of this approach is still in an infancy stage. The possibility of finding a large number of states of nature, few observations per state and models affected by collinearity have led some...
