The main preconditions have been: (1) a macro-economic environment in which entrepreneurial activity is able to thrive and prosper; (2) an education, or more broadly, a value system, that encourages an entrepreneurial culture; (3) a comprehensive support regime, including financial assistance in various forms, as well as technical support and training.
Journal of Economic Perspectives 4(2) 67–83. Brumm, J., M. Grill, F. Kubler and K. Schmedders (2015), Margin Regulation and Volatility, Journal of Monetary Economics 75, 54–68. [3]  Fortune, P. (2001). Margin Lending and Stock Market Volatility, New England Economic Review 4, 3–26. Hardouvelis, G. and P. Theodossiou (2002).