"Keynes argued that wage stickiness was probably a good thing, that wage and price ?exibility could easily be destructive of real economic stability. His reasoning went like this. In a monetary economy, the nominal interest rate cannot be negative. Hence the real interest rate must be at least equal to the rate of de?ation.
If wages and prices were to fall freely after a contractionary shock, the real interest rate would become very large at just the wrong time, with adverse effects on investment. The induced secondary contraction would only worsen the situation." (Solow, 1980). Discuss the validity of these arguments. Do they apply also to the modern classical model?