Peter Wilkins argued that "The end of history and the post-Cold War extension and deepening of capitalism are central to understanding the rise of contemporary populist movements." Pippa Norris and Ronald F. Inglehart examine two theories on the causes of support for the growing populist movements in Western societies. The first is the economic insecurity perspective which focuses on the consequences created by a transforming contemporary workforce and society in post-industrial economies. Norris suggests that events such as globalisation, China's membership of the World Trade Organisation and cheaper imports have left the unsecured members of society (low-waged unskilled workers, single parents, the long term unemployed and the poorer white populations) seeking stronger authoritarian populist leaders such as Donald Trump and Nigel Farage. The other theory is the cultural backlash thesis, in which Norris and Inglehart suggest that the rise of populism is a reaction from previously dominant sectors of the population, the white, uneducated, elderly men of today, who feel threatened and marginalised by the progressive values of modern society. These groups in particular have a growing resentment towards their traditional values being scolded as politically incorrect and are much more likely to become supportive of anti-establishment, xenophobic political parties.