It postulated a monolithic structure of domination which in reality did not exist in that way. Stamocap theory failed to explain the rise of neoliberal ideology in the business class, which claims precisely that an important social goal should be a reduction of the state's influence in the economy. Stamocap theory failed to show clearly what the difference was between a socialist state and a bourgeois state, except that in a socialist state the communist party, or rather its central committee, played the leading political role. In that case, the class-content of the state itself was defined purely in terms of the policy of the ruling political party or its central committee. Current forms in the 21st century State capitalism is distinguished from capitalist mixed economies where the state intervenes in markets to correct market failures or to establish social regulation or social welfare provisions in the following way: the state operates businesses for the purpose of accumulating capital and directing investment in the framework of either a free market or a mixed-market economy. In such a system, governmental functions and public services are often organized as corporations, companies or business enterprises. Mainland China Many analysts assert that China is one of the main examples of state capitalism in the 21st century. In his book The End of the Free Market: Who Wins the War Between States and Corporations, political scientist Ian Bremmer describes China as the primary driver for the rise of state capitalism as a challenge to the free market economies of the developed world, particularly in the aftermath of the financial crisis of 2007–2008. Bremmer draws a broad definition of state capitalism as such: Following on Bremmer, Aligica, and Tarko further develop the theory that state capitalism in countries like modern day China and Russia is an example of a rent-seeking society. They argue that following the realization that the centrally planned socialist systems could not effectively compete with capitalist economies, formerly Communist Party political elites are trying to engineer a limited form of economic liberalization that increases efficiency while still allowing them to maintain political control and power. In his article "We're All State Capitalists Now", British historian and Laurence A. Tisch Professor of History at Harvard University Niall Ferguson warns against "an unhelpful oversimplification to divide the world into 'market capitalist' and 'state capitalist' camps. The reality is that most countries are arranged along a