Los B and MP Timmer (2005). “The ‘Appropriate Technology’ Explanation of Productivity Growth Differentials: An Empirical Approach.” J Development Economics 77(2): 517-531.
Los B and MP Timmer (2005). “The ‘Appropriate Technology’ Explanation of Productivity Growth Differentials: An Empirical Approach.” J Development Economics 77(2): 517-531.