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2011年10月24日

●age-dependent tax

The Surprising Power of Age-Dependent Taxes
Weinzierl (RES 2011)
abstract:
This paper provides a new, empirically driven application of the dynamic Mirrleesian framework by studying a feasible and potentially powerful tax reform: age-dependent labour income taxation. I show analytically how age dependence improves policy on both the intratemporal and intertemporal margins. I use detailed numerical simulations, calibrated with data from the U.S. Panel Study of Income Dynamics, to generate robust policy implications: age dependence (1) lowers marginal taxes on average and especially on high-income young workers and (2) lowers average taxes on all young workers relative to older workers when private saving and borrowing are restricted. Finally, I calculate and characterize the welfare gains from age dependence. Despite its simplicity, age dependence generates a welfare gain equal to between 0·6% and 1·5% of aggregate annual consumption, and it captures more than 60% of the gain from reform to the dynamic optimal policy. The gains are due to substantial increases in both efficiency and equity. When age dependence is restricted to be Pareto improving, the welfare gain is nearly as large.
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●impact of fraud on market

Discoveries of fakes: Their impact on the art market
Bocart and Oosterlinck (2011EL)
Abstract:
This paper shows that before (after) fakes’ discoveries, artworks are less (more) likely to be sold through Sotheby’s or Christie’s. Prices only react negatively with a lag, suggesting that sellers try to postpone their sales as long as possible.
続きを読む "impact of fraud on market"