Browse through our Book Store for various books written by members of our team.
Read various research papers by the team of researchers at Tax Technology Research.

» State Enterprise Zones: Where are They Located?
Most states offer lucrative tax benefits for firms which locate in Enterprise Zones (EZs). Each state decides which areas qualify for EZ status, and designate local coordinators for the zones. Despite the prevalence of EZs, there has been no systematic research on EZs on a national scale.

» On Effective Tax Rates and Firm Valuation
Although firm managers devote resources to tax minimization in order to increase shareholder value, there is no empirical evidence that investors value such tax management. The policy issue is that if firms devote resources to tax management which is undervalued by markets, firm resources may be better off spent elsewhere. This study finds that investors do value such tax minimization in terms of increased returns on common stock. What is surprising is that such valuation occurs in light of the well-known extreme measurement error inherent in publicly-available data on tax rates.

» Modeling The Incentive Effects Of State Corporate Income Tax Laws
This study models the optimal location choice decisions of a firm in response to differential state corporate hiring and equipment tax credits, income apportionment rules, and other incentives, while controlling for different tax structures and tax rates. Results are that while hiring and equipment credits attract resources to a state, relatively low tax rates are more effective, especially in states using so-called unitary tax structures. While hiring and equipment tax credits are not individually very effective, together they are. The absence of sales “throwback” rules is an effective incentive, but results in a negative externality to other states. Placing extra weight on sales apportionment factors is effective only if used in a non-throwback state. These findings have important implications since virtually all states utilize these laws in an attempt to attract additional investment.