Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
Summary This paper studies the driving forces behind the considerable expansion of the underground economy during the late 1990s. I propose a novel explanation for this phenomenon: the sharp increase in market competition worldwide, which reduces prices and profits and drives firms into the shadow economy. Empirical evidence from a panel covering 45 countries from 1995 to 2000 shows that increased competition is indeed correlated with an expansion of the underground economy. The effect is strongest in low-tax, high-corruption countries that do not provide the public services which make it worthwhile for firms to remain official despite growing competitive pressure.