Politically, sometimes you get situations where rent control will go through. It is especially true in an emergency, where there is a sudden, sharp increase in demand for housing or a cut back in supply. People will simply not allow the marketplace to allocate housing resources and so you get pressures for rent control. Once you have it, it is hard to eliminate.

We try to prevent the creation of artificial rents. Rather than setting up quotas to stop imports we levy a tariff, that would be better. Or we pay wages in the public sector which are roughly equivalent to the productivity in the private sector and we don't therefore make it a special benefit to get a bureaucratic position.

We want to limit the exploitation of the fiscal capacity of the richer regions by keeping down the rate of immigration to a level that would be meaningful and efficient. One way to do that is to have a scheme of equalization which essential bribes people to stay in the poorer regions.

Politics is a romantic search for the good and the true and the beautiful.

You have to have a government to provide you with legal order, with stability, enforcement of property rights, enforcement of contracts, definition of rules and regulations - the rules of the game, so to speak - and to provide certain shared goods and services, public services. Several people have tried to estimate this and they come out with figures like government spending at 15% of GDP. In the modern world it has gone to 40% or above. So we are way beyond the optimal, and that is easier to say than what the optimum is.

Imagine that Queen Elizabeth I, in her time, had the opportunity to give out a monopoly for playing cards within the kingdom. She knew she was going to give it to one of her courtiers. These courtiers would then all try to curry her favour. Meanwhile, they would not contribute anything to the product of the kingdom, in fact, they were wasting resources trying to secure a single prize. That, more or less, is rent seeking.

People share a universal behavioural trait: if there are profits to be made, the effort to get that money will attract investment. This is true in the private sector, the market sector, as well as the public sector.