Dynamic Optimal Taxation with Private Information

We study dynamic optimal taxation in a class of economies with private information. Optimal allocations in these environments are complicated and history-dependent. Yet, we show that they can be implemented as competitive equilibria in market economies supplemented with simple tax systems. The market structure in these economies is similar to that in Bewley (1986) ; agents supply labour and trade risk-free claims to future consumption, subject to a budget constraint and a debt limit. Optimal taxes are conditioned only on two observable characteristics—an agent's accumulated stock of claims, or wealth, and her current labour income. We show that optimal taxes are generally non-linear and non-separable in these variables and relate the structure of marginal wealth and income taxation to the properties of agent preferences.     

BREAKING THE IMPEDIMENTS TO BUDGETARY REFORMS: EVIDENCE FROM EUROPE

In addition to the known effects of government fractionalization, we find that larger deficits are associated with a reduced likelihood of budgetary reforms. In a war of attrition setting, larger deficits signify stronger entitlements on the budget, generating unwillingness to impose self‐discipline. A sense of crisis emerges only when macroeconomic imbalances appear. However, while a crisis creates the opportunity for reform, policy credibility is important for effectively using that opportunity. We find that one way of establishing credibility is by undertaking measures in opposition to the government's known ideological position – these presumably signal motivation by broader social welfare considerations.     

An Experiment on Retail Payments Systems

We develop a novel theoretical and experimental framework to study adoption and use of cash versus electronic payments in retail transactions. The design allows us to assess the behavioral impact of sellers' service fees and buyers' rewards from using electronic payments. In the experiment, buyers and sellers faced a coordination problem, independently choosing a payment method before trading. Sellers readily adopted electronic payments but buyers did not. Eliminating service fees or introducing rewards significantly increased adoption and use of electronic payments. Buyers' economic incentives were crucial for the diffusion of electronic payments but cannot fully explain their adoption choices.