Advance tax rulings allow taxpayers to achieve certainty about the tax consequences of contemplated transactions, and are thus considered indispensable in the modern world of tax administration and compliance. After providing empirical evidence of tax law uncertainty, which should give rise to a...

Empirical research on the relationship between market congestion and themarket competitive level largely falsifies the positive relationshippredicted by theoretical models. In this paper, I exploit the airlineindustry network structure and focus on the level of congestion duringperiods in which...