Accurate policy evaluation is central to optimal policymaking, but difficult to achieve. Most often, analysts have to work with observational data and cannot directly observe the counterfactual of a policy to assess its effect accurately. In this paper, we craft a quasi-experimental design and apply two relatively new methods—the differencein-differences estimation and the synthetic controls me...

The Organization for Economic Cooperation and Development (OECD) places the issue of taxation of cross-border e-commerce transaction as one of its top four projects for investigation. In January 2001, some member countries agreed to a series of guidelines on how to apply existing tax treaties to Web transactions. After discussing potential threats and challenges facing etax administrators and p...

Every year, companies that produce commercial tax preparation software struggle with thousands of state and federal changes to tax laws and forms. Three competitors dominate the market with its short selling season, and release delays slash profits. Tax authorities issue updates August-December, and all changes must be processed and incorporated before year end. Systematic resource allocation a...

We investigate a game of delegated portfolio management such as hedge funds featuring risk-neutrality, hidden types, and hidden actions. We show that capital gain tax plays the decisive role in solving the incentive problem. We characterize the constrained optimal fee scheme and capital gain tax rate; the fee after taxation must be linear and affected by gains and losses in a low-powered and sy...

Various tax policies provide consumers with forms of insurance. Social security has the payoff characteristics of an annuity. The income tax provides consumers with a degree of Income insurance because the government shares part of the individual's income risk. Redistributive taxes can be used to spread aggregate income risks across different generations The effects of these and other tax polic...

Managers’ prediction of users’ decisions is economically valuable. Managers do manage income either to distort information or to defer and report the information related to future incomes. This investigation aims at examining the effects of taxable income management on future tax avoidance consequences as well as the information content of firms. Panel data models, multivariate regression model...