Angus Maddison noted that: As Marx was not interested in the survival of the capitalist system, he was not really concerned with economic policy, except in so far as the labour movement was involved. There, his argument was concentrated on measures to limit the length of the working day, and to strengthen trade union bargaining power. His analysis was also largely confined to the situation in the leading capitalist country of his day—the UK—and he did not consider the policy problems of other Western countries in catching up with the lead country (as Friedrich List did). In so far as Marx was concerned with other countries, it was mainly with poor countries which were victims of Western imperialism in the merchant capitalist era.