A procedure used for a ground truth study of a land use map of North Alabama generated from LANDSAT data

A land use map of a five county area in North Alabama was generated from LANDSAT data using a supervised classification algorithm. There was good overall agreement between the land use designated and known conditions, but there were also obvious discrepancies. In ground checking the map, two types of errors were encountered - shift and misclassification - and a method was developed to eliminate or greatly reduce the errors. Randomly selected study areas containing 2,525 pixels were analyzed. Overall, 76.3 percent of the pixels were correctly classified. A contingency coefficient of correlation was calculated to be 0.7 which is significant at the alpha = 0.01 level. The land use maps generated by computers from LANDSAT data are useful for overall land use by regional agencies. However, care must be used when making detailed analysis of small areas. The procedure used for conducting the ground truth study together with data from representative study areas is presented

The Case for Auctioning Countermeasures in the WTO

A prominent problem with the WTO dispute settlement procedures is the practical difficulty faced by small and developing countries in finding the capacity to effectively retaliate against trading partners that are in violation of their WTO commitments. In light of this problem, Mexico has proposed that retaliation rights be made tradeable.' We offer a first formal analysis of the possibility that retaliation rights within the WTO system be allocated through auctions. We show that the auctions exhibit externalities among bidders, and we characterize equilibrium bidder behavior under alternative auction formats. A key feature of auction format is whether the country in violation of its WTO commitments is prevented from bidding to retire the right of retaliation: if so, then the possibility of auction failure' arises, in which no bids are made despite positive valuation by the bidders; if not, then auction failure is precluded, and indeed the right of retaliation is always retired. We also evaluate these different auction formats from normative (revenue, efficiency) standpoints.

The case for tradable remedies in WTO dispute settlement

In response to concerns over the efficacy of the WTO dispute settlement system, especially in regard to its use by developing countries, Mexico has tabled a proposal to introduce tradable remedies within the Dispute Settlement Understanding. The idea is that a country that has won cause before the WTO, and who is facing non-implementation by the author of the illegal act but feels that its own capacity to exercise its right to impose countermeasures is unlikely to lead to compliance, can auction off that right. The attractiveness of this idea is that it offers an additional possibility to injured WTO members to get something from the dispute settlement mechanism without putting into question the legal nature of the existing contract, that is, the predominantly decentralized system of enforcement in the WTO. Examining all disputes brought to the WTO since its inception, the authors find some support for Mexico's perception that developing countries face a practical problem when they attempt to carry through with effective retaliation within the WTO system. And based on the formal results of Bagwell, Mavroidis, and Staiger (2003), they describe arguments that lend some support to the efficacy of Mexico's proposed solution from the perspective of formal economic theory.Information Technology,International Terrorism&Counterterrorism,General Technology,Economic Theory&Research,Environmental Economics&Policies,Trade and Services,Economic Theory&Research,International Terrorism&Counterterrorism,Information Technology,World Trade Organization

Scatterer that leaves "footprints" but no "fingerprints"

We calculate the exact transmission coefficient of a quantum wire in the presence of a single point defect at the wire's cut-off frequencies. We show that while the conductance pattern (i.e., the scattering) is strongly affected by the presence of the defect, the pattern is totally independent of the defect's characteristics (i.e., the defect that caused the scattering cannot be identified from that pattern).Comment: 4 pages, 3 figure

United States - Section 129(c)(1) of the Uruguay Round Agreements Act (WTO Doc. WT/DS22/R of 15 July 2002): Beating Around (The) Bush

In this dispute, Canada attacks Section 129(c)(1) of the US trade legislation as a result of the entry into force of the Uruguay Round Agreements [Uruguay Round Agreements Act (URAA), hereinafter "Section 129”] which provides that a new antidumping or countervailing duty determination made by the Department of Commerce (DOC) or the International Trade Commission (ITC) to bring a previous antidumping, countervailing duty or injury determination into conformity with an adverse WTO panel or Appellate Body report applies only to imports that enter the United States on or after the date that the United States Trade Representative (USTR) directs implementation of the new determinatio

The case for auctioning countermeasures in the WTO

A major accomplishment of the Uruguay Round of GATT negotiations in creating the World Trade Organization (WTO) was the introduction of new dispute settlement procedures. These procedures were intended to provide a significant step forward, relative to GATT, in the settling of trade disputes, in large part by ensuring that violations of WTO commitments would be met with swift retaliation ("suspension of concessions") by the affected trading partners. While the dispute settlement procedures of the WTO indeed represent a considerable improvement over those in GATT, nine years of experience under the new procedures suggests that significant problems of enforcement remain in the WTO