earlier. In a poorer and less socialist era, we produced a nationwide network of roads and bridges and subway systems that were the envy of the world. Today we are unable even to maintain them. Reduced incentives One criticism of socialism is that, in any society where everyone holds equal wealth, there can be no material incentive to work because one does not receive rewards for a work well done. They further argue that incentives increase productivity for all people and that the loss of those effects would lead to stagnation. Some critics of socialism argue that income sharing reduces individual incentives to work and therefore incomes should be individualized as much as possible. In The Principles of Political Economy (1848), John Stuart Mill wrote: Mill later altered his views and adopted a socialist perspective, adding chapters to his Principles of Political Economy in defense of a socialist outlook and defending some socialist causes. Within this revised work, he also made the radical proposal that the whole wage system be abolished in favour of a co-operative wage system. Nonetheless, some of his views on the idea of flat taxation remained, albeit in a slightly toned down form. Reduced prosperity Austrian school economist Hans-Hermann Hoppe argued that countries where the means of production are nationalized are not as prosperous as those where the means of production are under private control ("prosperous" is defined in terms of GDP). However, not all socialists subscribe to the idea of nationalization, some preferring socialisation instead. Another Austrian school economist, Ludwig von Mises, argued that aiming for more equal incomes through state intervention necessarily leads to a reduction in national income and therefore average income. Consequently, he says that the socialist chooses the objective of a more equal distribution of income on the assumption that the marginal utility of income to a poor person is greater than that to a rich person. According to Mises, this mandates a preference for a lower average income over inequality of income at a higher average income. He sees no rational justification for this preference and he also states that there is little evidence that the objective of greater income equality is achieved. Mises also says: "The only certain fact about Russian affairs under the Soviet regime with regard to which all people agree is: that the standard of living of the Russian masses is much lower than that of