Best cities of america for Solow felt that this feature of the Harrod-Domar model was implausible, given the relatively smooth growth observed in the real world. He showed that the problem is eliminated if production is modeled with a neoclassical production function and prices in all markets are flexible. In his model, the capital- output ratio automatically adjusts to insure that the demand for output expands at the same rate as production, regardless of the savings rate. In addition to his theoretical work on growth, Solow was the first to demonstrate that technological improvement, rather than capital accumulation and population growth, is responsible for nearly half of all economic growth. BIBLIOGRAPHY. B. Mak Arvin and Marisa A Scigliano, Robert Solow, Frontiers of Economics, Nobel Laureates of the Twentieth Century (Greenwood Press, 2002); Robert M. Best cities of america 2016.