Macroeconomics: Economics growth part 2

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In this step you'll learn about the relationship between capital accumulation and economic growth. We will assume that there is no technological progress and that the population growth is zero. We will look at the interaction between capital and output, and how investment is proportional to output. We will then analyze the change in capital per worker, which is determined by saving per worker minus depreciation. In order for capital to accumulate over time, investment per worker must exceed depreciation per worker."