. Suppose that we modify the Solow growth model by allowing longiruu technologi- cal progress. That is, suppose that z = 1 for convenience, and that there is labor; augmenting technological progress, with a production function r = F(K, 5N), where .5 denotes the number of units of \"human capital\" per worker, and EN is \"eciency units\" of labor. Letting b' denote future human capital per worker, assume that b' = (1 + fJb, where f is the growth rate in human capital. The rest of the economy is identical to the Solow growth model we studies in the class. That is, capital evolves