1. Use the improved version of the technological production function dis-cussed in class (also see Mathematical appendix to Chapter 9 (An Im- proved version of the technological production function) ) .

2. In the United States, the fraction of the labor force that is engaged in R&D rose from about 0.28% in 1950 to 0.89% in 2017.

   During the same period, the labor force in the United States increased from 62 million to 162 million people. It is estimated that Total Factor Productivity during that time grew by 0.6%.

   Calculate the implied ratio of to .

2 = -La. 2 = -La