1　非正规经济的定义非正规经济的定义主要有两个。一个是广义的 ,指并不在官方统计之列的 ,主要是通过现金进行交易和不纳税的经济活动。它包括非正规经济、地下经济、平行经济或黑市经济。据奥地利林茨开普勒大学教授弗里德里希·施奈德估计 ,1 999年全世界正规经济规模为 3 1 Definition of the informal economy There are mainly two definitions of the informal economy. One is generalized and refers to economic activities that are not traded in official statistics and that are primarily traded in cash and not taxed. It includes the informal economy, underground economy, parallel economy or black market economy. According to Friedrich Schneider, a professor at Kempen University in Linz, Austria, the world’s formal economy was 3 in 1999