95 percent of economics is common sense made complicated, and even for the remaining 5 percent, the essential reasoning, if not all the technical details, can be explained in plain terms.

Rational thinking is an important aspect of human nature, but we have imagination, we have ambition, we have irrational fear, we are swayed by other people, we get indoctrinated and we get influenced by advertising.

It takes time and experience to absorb new technologies, so technologically backward producers need a period of protection from international competition during this period of learning. Such protection is costly, because the country is giving up the chance to import better and cheaper products. However, it is a price that has to be paid if it wants to develop advanced industries.

The top 10 per cent of the US population appropriated 91 per cent of income growth between 1989 and 2006, while the top 1 per cent took 59 per cent.

The danger is not only that these austerity measures are killing the European economies but also that they threaten the very legitimacy of European democracies - not just directly by threatening the livelihoods of so many people and pushing the economy into a downward spiral, but also indirectly by undermining the legitimacy of the political system through this backdoor rewriting of the social contract.

Once you realize that trickle-down economics does not work, you will see the excessive tax cuts for the rick as what they are -- a simple upward redistribution of income, rather than a way to make all of us richer, as we were told.

In manufacturing, where mechanization and the use of chemical processes are much easier, it is easier to raise productivity than in services. In contrast, by their very nature, many service activities are inherently impervious to productivity increase without diluting the quality of the product.