Lansink, Alfons Oude; Stefanou, Spiro E. - In: American Journal of Agricultural Economics 79 (1997) 4, pp. 1340-1351
This study provides a framework for consistent estimation of a dynamic dual model of investment for the case where data reveal zero and nonzero investments. The threshold model that is developed maintains that investments are zero if the shadow value of machinery is between a lower and an upper...