Negotiate or Litigate? Effects of WTO Judicial Delegation on U.S. Trade Politics

Goldstein and Steinberg argue that the World Trade Organization Appellate Body has been able to use its authority to engage in judicial lawmaking to reduce trade barriers in ways that would not otherwise have been possible through negotiation. This lawmaking authority was not the result of a purposeful delegation; rather, it was an unintended byproduct of the creation of an underspecified set of rules and procedures. There is nevertheless a high rate of compliance with Appellate Body decisions because decentralized enforcement can induce domestic importers to lobby for trade liberalization. In the US, this judicial lawmaking may also allow the President to achieve trade policies that are more liberal than those desired by Congress, if compliance can be achieved by a regulatory change or by sole Executive action

Joint Crowdout: An Empirical Study of the Impact of Federal Grants on State Government Expenditures and Charitable Donations

We estimate the effect of exogenous federal expenditure cutbacks on state social service expenditures and on charitable donations. In the process, we also estimate tax and income effects and explore the impact of community environment and "need" variables. Data consist of a unique three-year panel of aggregate itemized giving by state and income class and government expenditures by state. Our results confirm the 'flypaper effect' of federal grants on state spending and show statistically significant but partial crowdout of charitable donations. The flypaper effects appears to dominate the crowdout of donations, so that federal grants are especially productive of overall social service expenditures. Finally, we find that the state's poverty rate is a particularly strong and positive determinant of charitable giving.

An Overview of Combinatorial Auctions

An auction is combinatorial when bidders can place bids on combinations of items, called “packages,” rather than just individual items. Computer scientists are interested in combinatorial auctions because they are concerned with the expressiveness of bidding languages, as well as the algorithmic aspects of the underlying combinatorial problem. The combinatorial problem has attracted attention from operations researchers, especially those working in combinatorial optimization and mathematical programming, who are fascinated by the idea of applying these tools to auctions. Auctions have been studied extensively by economists, of course. Thus, the newly emerging field of combinatorial auctions lies at the intersection of computer science, operations research, and economics. In this article, we present a brief introduction to combinatorial auctions, based on our book, Combinatorial Auctions (MIT Press, 2006), in which we look at combinatorial auctions from all three perspectives.Auctions

Making difficult auctions easy

To maximise revenue from an auction, an important question is how to design it. A combinatorial auction is one where bids are allowed not only on individual items, but on combinations of items, called packages, as well. The auctioneer aims to accept the bids that together maximise revenue. This is called the winner determination problem — a mathematical problem. As the number of items in an auction increases, the number of steps required to design the optimal combination increases exponentially, and so does the time required to solve the puzzle. Together with his colleague Frank Kelly, Richard Steinberg developed a combinatorial auction procedure called PAUSE (Progressive Adaptive User Selection Environment) in which the auctioneer never faces the winner determination problem

Mathematical Tutorials in Introductory Physics

Students in introductory calculus-based physics not only have difficulty understanding the fundamental physical concepts, they often have difficulty relating those concepts to the mathematics they have learned in math courses. This produces a barrier to their robust use of concepts in complex problem solving. As a part of the Activity-Based Physics project, we are carrying out research on these difficulties and are developing instructional materials in the tutorial framework developed at the University of Washington by Lillian C. McDermott and her collaborators. In this paper, we present a discussion of student difficulties and the development of a mathematical tutorial on the subject of pulses moving on strings.Comment: 8 pages, 2 figures, 1 table, 12 references and note

Earned, owned, or transferred: are donations sensitive to the composition of income and wealth?

Using data from COPPS/PSID, we investigate the effects of different forms and sources of income (labor, asset, welfare, and other transfers) and wealth (home equity and other wealth) on household charitable donations (total, religious, secular, combined causes, and the needy). We find that it is important to disaggregate income and wealth and to distinguish the effect of an increase in the level of each component from the effect of the component’s presence. We reject the fungibility hypothesis for income and, except for religious giving and gifts to the needy, for wealth. Past receipt of inheritances affects current giving.donations, income decomposition, wealth decomposition, consumption

Maximizing social welfare in congestion games via redistribution

It is well-known that efficient use of congestible resources can be achieved via marginal pricing; however, payments collected from the agents generate a budget surplus, which reduces social welfare. We show that an asymptotically first-best solution in the number of agents can be achieved by the appropriate redistribution of the budget surplus back to the agents