The American economy is presently in its longest expansion period ever. This extraordinary performance has two different explanations. Either it is due to combined results of globalization and the advent of the new information and communication technologies. Or it is the consequence of several fortuitous factors. In the first case, it can last for a very long period of time. In the second case, it can be interrupted at any moment.
AFTALION, F. (2000). La New Economy. In: La nouvelle économie. 1st ed. Arthur Andersen, pp. 8-9.