Capital share equals α, labor share equals 1−α in the model (always, not only along BGP). 5. What is the law of motion of capital in the solow model?Solow sets up a mathematical model of long-run economic growth. He assumes full employment of capital and labor. We will examine how the model works when growth comes through capital accumulation, and how it works when growth is due to innovation. Write consumption per worker as a function of the capital stock in steady-state. If nothing else in the model changes, there will be a defined level of capital that the economy converges towards, no matter where the capital stock starts.