摘要：
This paper shows that an increase in corporate/labor/income tax
rates may push an economy with tax evasion
into an expansionary pattern, under increasing returns to scale.
These effects would be reversed when the steady state is
saddle-path stable. This model does not undertake a full identification.
The interesting feature of our results is that fiscal
policy in an economy with a significant underground sector may provide
inadvisable outcomes. Thus, tax policies can
generate counterproductive results in an economy characterized by
existence of aggregate increasing returns to scale and
underground activities.
