An article in the Economist notes, "For 60 years, from 1770 to 1830 , growth in British wages, adjusted for inflation, was imperceptible because productivity growth was restricted to a few industries." Not until the late nineteenth, when productivity "gains had spread across the whole economy," did a sustained increase in real wages begin. Why would you expect there to be a close relationship between productivity gains and increases in real wages?

Lillypad toys is a manufacturer of educational toys for children. six months ago, the company's research and development division came up with an idea for a unique touchscreen device that can be used to introduce children to a number of foreign languages. three months ago, the company produced a working prototype, and last month the company successfully launched its new device on the commercial market. what should lillypad's managers prepare for next? a. increased competition from imitators b. a prolonged period of uncontested success c. a sharp decline in demand for the product d. a difficult struggle to move from invention to innovation