Governments,trade unions and the macroeconomy: An expository analysis of the political business cycle

We have briefly reviewed the state of the art of research on the political business cycle in the context of a simple textbook model of the macroeconomy. It has been demonstrated that the government-generated political business cycle vanishes as expectations turn rational. Even then, however, non-inflationary policies apparently are time inconsistent. Hence, democracies seem to be stuck with some sort of inflationary bias.Countries with fairly centralized wage bargaining and strong labor unions have to deal with a second political source of instability in the macroeconomy: if the labor union's program contains political items such as equal educational opportunities for working class children, extended co-determination, a more equal distribution of wealth, and the like, they will prefer to see those parties in power who show the best prospects of implementing those items. So the trade union's wage bargaining strategies take into account how bargaining results influence the state of the economy and, hence, the reelection prospects of the ruling government — and they will do so in different ways, depending on whether the union prefers the government to the opposition party or vice versa.