The thing that distinguishes social systems from physical or even biological systems is their incomparable (and embarrassing) richness in special cas… - Kenneth E. Boulding

If a totally new image is to come into being however, there must be sensitivity to internal messages, the image itself must be sensitive to change, must be unstable, and it must include a value image which places high value on trials, experiments, and the trying of new things.

The main key to the economics of the postwar world is a simple truism — that the rate of accumulation is equal to the rate of production less the rate of consumption. This is the "Bathtub Theorem." Production may be likened to the flow of water from the faucet, consumption to the flow down the drain. The difference between these two flows is the rate at which the water in the bathtub - the total stockpile of all goods - is accumulating.
War drains the economic bathtub in a great waste of consumption. The first problem of reconstruction is to rebuild the stockpile. It can be rebuilt only by widening the gap between production and consumption, or, in the case of a single country, by importing more than is exported. It is difficult for a ravaged country to increase either its production or its net imports. Unless it can obtain outside help, therefore, it must suffer a drastic restriction of consumption. Frequently the only way consumption can be restricted is by inflation. Here, therefore, is the key to the most fundamental problems of reconstruction.

Economists can take a good deal of credit for the stabilization policies which have been followed in most Western countries since 1945 with considerable success. It is easy to generate a euphoric and self-congratulatory mood when one compares the twenty years after the first World War, 1919-39, with the twenty years after the second, 1945-65. The first twenty years were a total failure; the second twenty years, at least as far as economic policy is concerned, have been a modest success. We have not had any great depression; we have not had any serious financial collapse; and on the whole we have had much higher rates of development in most parts of the world than we had in the 1920’s and 1930’s, even though there are some conspicuous failures. Whether the unprecedented rates of economic growth of the last twenty years, for instance in Japan and Western Europe, can be attributed to economics, or whether they represent a combination of good luck in political decision making with the expanding impact of the natural and biological sciences on the economy, is something we might argue. I am inclined to attribute a good deal to good luck and non-economic forces, but not all of it, and even if economics only contributed 10 percent, this would amount to a very handsome rate of return indeed, considering the very small amount of resources we have really put into economics.