Gil, Pedro Mazeda; Afonso, Óscar - Faculdade de Economia, Universidade do Porto - 2008
The Perpetual Inventory Model (PIM) assumes that, in each period, an arbitrary constant fraction of technological-knowledge … the PIM by showing that the technological-knowledge accumulation follows a dynamic process with an endogenous depreciation … rate, which remains stable in steady state. Moreover, we relate different concepts of technological-knowledge used in the …