Among ideas, legitimacy, and all of the other dimensions of development Ideas concerning legitimacy develop according to their own logic, but they are also shaped by economic, political, and social development. The history of the twentieth century would have looked quite different without the writings of an obscure scribbler in the British Library, Karl Marx, who systematized a critique of early capitalism. Similarly, communism collapsed in 1989 largely because few people any longer believed in the foundational ideas of Marxism-Leninism. Conversely, developments in economics and politics affect the kinds of ideas that people regard as legitimate. The Rights of Man seemed more plausible to French people because of the changes that had taken place in France's class structure and the rising expectations of the new middle classes in the later eighteenth century. The spectacular financial crises and economic setbacks of 1929-1931 undermined the legitimacy of certain capitalist institutions and led the way to the legitimization of greater state control over the economy. The subsequent growth of large welfare states, and the economic stagnation and inflation that they appeared to encourage, laid the groundwork for the conservative Reagan-Thatcher revolutions of the 1980s. Similarly, the failure of socialism to deliver on its promises of modernization and equality led to its being discredited in the minds of many who lived under communism. Economic growth can also create legitimacy for the governments that succeed in fostering it. Many fast-developing countries in East Asia, such as Singapore and Malaysia, have maintained popular support despite their lack of liberal democracy for this reason. Conversely, the reversal of economic growth through economic crisis or mismanagement can be destabilizing, as it was for the dictatorship in Indonesia after the financial crisis of 1997-1998.33 Legitimacy also rests on the distribution of the benefits of growth. Growth that goes to a small oligarchy at the top of the society without being broadly shared often mobilizes social groups against the political system. This is what happened in Mexico under the dictatorship of Porfirio Diaz, who ruled the country from 1876 to 1880 and again from 1884 to 1911. National income grew rapidly in this period, but property rights existed only for a wealthy elite, which set the stage for the Mexican Revolution of 1911 and a long period of civil war and instability as underprivileged groups fought for their share of national income. In more recent times, the legitimacy of democratic systems in Venezuela and Bolivia has been challenged by populist leaders whose political base is poor and otherwise marginalized groups.34