|
|
|
|
|
Zvi Griliches
Pág. pp. 145 - 160
Recent work on the relationship of productivity growth to expenditures on R&D is discussed with special reference to ""unfinished business"": unsolved conceptual and econometric problems. The standard ""R&D as a capital"" model raises a number of difficu...
ver más
|
|
|
|
|