The RBI can decrease or increase to curb inflation or deflation respectively. In the actual world with money illusion, inflation (and deflation) did serious harm. Such a policy is usually a response to very slow economic growth, deflation, and deleveraging. Hence, continual budget deficits are necessary for a growing economy that wants to avoid deflation. The goal was to counter the deflation which was paralyzing the economy. From 1929 to 1933, the industrial economy suffered from a vicious cycle of deflation. Commodity money conversely led to deflation and bank runs. The Meiji Restoration of 1868 led to administrative overhaul, deflation and subsequent rapid economic development. This is the first time deflation has hit the Irish economy since 1960. Another related idea is Irving Fisher's theory that excess debt can cause a continuing deflation. Farmers and planters suffered from price deflation and debt-default spirals. When expectations corrected, deflation and a credit crunch followed. Despite the deflation and depression, GDP rose 16% from 1839 to 1843. Within Bretton Woods adjustment was cushioned through credits that helped countries avoid deflation. To achieve this a country has to reduce prices, including wages (deflation).