An analytical framework for dealing with political entrepreneurship and reform is proposed which is based on some new combinations of Schumpeterian political economy, an extended version of Tullock's model of democracy as franchise-bidding for natural monopoly and some basic elements of New Institutional Economics. It is shown that problems of insufficient award criteria and incomplete contracts which may arise in economic bidding schemes, also — and even more so — characterise political competition. At the same time, these conditions create leeway for Schumpeterian political entrepreneurship. The same is true for various barriers to entry in politics. These barriers affect a trade-off between political stability and political contestability which will be discussed with special emphasis on incentives and opportunities for political entrepreneurship in the sense of risking long-term investments in basic political reforms.