Prejudgment Interest in International Arbitration
Jeffrey M. Colon
Fordham University School of Law
Michael S. Knoll
University of Pennsylvania Law School; University of Pennsylvania - Real Estate Department
October 29, 2007
U of Penn, Inst for Law & Econ Research Paper No. 07-32
Fordham Law Legal Studies Research Paper No. 1029710
Tribunals in international arbitration are regularly asked by claimants to award prejudgment interest. Unless foreclosed by an agreement between the parties, there is widespread agreement prejudgment interest should put the claimant in the same position as it would have been had it not been injured by the respondent. However, there is little consensus how to calculate prejudgment interest in order to accomplish that purpose. In this Essay, we describe the proper method of calculating prejudgment interest based on sound financial principles. Using the paradigm that the respondent has forced the claimant to make an involuntary loan to the respondent, we argue that prejudgment interest should be computed using the respondent's borrowing rate. Furthermore, we argue that tribunals should use a series of short-term, floating interest rates rather than a single long-term rate at the commencement of the dispute in order to provide the parties with the proper incentive to settle their dispute. We also discuss how the calculations are different when the parties are individuals and closely held corporations as opposed to corporations and governments, and we address complications that arise when a tribunal calculates damages in one currency and makes a final award in another currency.
Number of Pages in PDF File: 24
Keywords: Prejudgment interest, international arbitration, international trade, alternative dispute resolution, law & economics, compensation, coerced loan, damages, time value of money, award, currency conversionworking papers series
Date posted: November 16, 2007
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