Productivity of a Country The productivity of a country in Western Europe is given by the function f(x, y) = 40x4/5y1/5 when x units of labor and y units of capital are used. (a) What are the marginal productivity of labor and the marginal productivity of capital when the amounts expended on labor and capital are 1024 units and 32 units, respectively? (Round your answers to two decimal places.) labor units capital units (b) Should the government encourage capital investment rather then increased expenditure on labor at this time in order to increase the country's productivity? O Yes O No

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