References Ajevskis V., Pogulis A., Berzins G. Foreign Exchange and Money Markets in the Context of the Exchange Rate Target Zone. Riga, Latvijas Banka, 2004, p. 24. Bertola, G.; Caballero, R. J. "Target Zones and Realignments." American Economic Review, Vol. 82, No. 3, June, 1992 b, pp. 520–536. Bertola, G.; Svensson, L. E. O. "Stochastic Devaluation Risk and the Empirical Fit of Target Zone Models." Review of Economic Studies, Vol. 60, No. 3, July, 1993, pp. 689–712. Hansen, L. P.; Hodrick, R. J. "Forward Exchange Rates as Optimal Predictors of Future Spot Rates: An Econometric Analysis." Journal of Political Economy, Vol. 88, No. 5, October, 1980, pp. 829–853. Krugman, P. "Target Zones and Exchange Rate Dynamics." Quarterly Journal of Economics, Vol. 106, No. 3, August, 1991, pp. 669–682. Ledesma-Rodriguez, F.; Navarro-Ibanez, M.; Pιrez-Rodriguez, J.; Sosvilla-Rivero, S. "On the Credibility of the Irish Pound in the EMS." The Economic and Social Review, Vol. 31, No. 2, April, 2000, pp. 151–172. Lindberg, H.; Soderlind, P.; Svensson, L. E. O. "Devaluation Expectations: The Swedish Krona 1985–92." Economic Journal, Vol. 103, September, 1993, pp. 1170–1179. Rose, A. K.; Svensson, L. E. O. "European Exchange Rate Credibility Before the Fall." European Economic Review, Vol. 38, Issue 6, June, 1994, pp. 1185–1216. Sosvilla-Rivero, S.; Fernandez-Rodriguez, F.; Bajo-Rubio, O. "Exchange Rate Volatility in the EMS Before and After the Fall." Applied Economics Letters, Vol. 6, Issue 11, November, 1999, pp. 717–722. Svensson, L. E. O. "The Simplest Test of Target Zone Credibility." IMF Staff Papers, Vol. 38, No. 3, September, 1991, pp. 655–665. Svensson, L. E. O. "Assesing Target Zone Credibility: Mean Reversion and Devaluation Expectations in the ERM 1979–1992." European Economic Review, Vol. 37, Issue 4, 1993, pp. 763–793. SDR Interest Rate Calculation, http://www.imf.org/external/np/fin/rates/sdr_ir.cfm, 2004.