The effect of the establishment of an organized exchange on weak form efficiency: the case of Istanbul Gold Exchange

Evidence is presented from IGE (the Istanbul Gold Exchange) that an institutional regulation such as the establishment of an organized exchange is an important component of informational efficiency that should not be disregarded in the process of financial liberlization.     

Scharfe untere und obere Schranken für die Wahrscheinlichkeit der Realisation vonk untern Ereignissen

Summary LetA ₁,...,A _n be events in a probability space (,A,W). We denote byL _k the event, that at leastk events among then eventsA ₁,...A _n occur, and byK _k the event, that exactlyk events occur. If only the inequalities _i W(A _i ) _i ,i=1,...,n, are known, we calculate sharp lower and upper bounds forW(L _k ) andW(K _k ). These bounds only depend onn, k and _i , _i ,i=1,...,n. They are relevant, when treating combined tests or confidence procedures.     

Asymptotic confidence bands for the estimated autocovariance and autocorrelation functions of vector autoregressive models

This paper provides closed-form formulae for computing the asymptotic covariance matrices of the estimated autocovariance and autocorrelation functions of stable VAR models by means of the delta method. These covariance matrices can be used to construct asymptotic confidence bands for the estimated autocovariance and autocorrelation functions to assess the underlying estimation uncertainty. The usefulness of the formulae for empirical work is illustrated by an application to inflation and output gap data for the U.S. economy indicating the existence of a significant short-run Phillips-curve tradeoff.First version received: November 2002/Final version received: September 2003     

Economic stagnation and development aid

The main objectors to a link being established between special drawing rights (SDRs) and the financing of development have in the past been the industrial countries. They have been pointing out that SDRs were created for other purposes — more effective control over international liquidity — and that a link with development finance would have an inflationary effect. If however the present unemployment situation in the industrial countries should become at least partly a permanent feature the idea of such a link would become more attractive than hitherto — to the industrial countries.     

Do real payments really matter? A re-examination of the compromise effect in hypothetical and binding choice settings

Numerous empirical studies have confirmed the existence of the compromise effect, which stipulates that options positioned between extreme alternatives in a product space are perceived as more attractive, hence becoming more likely to be chosen by consumers. However, literature on the topic frequently addresses the limited realism of prior work due to the artificial designs that were used. In a laboratory-based replication study, we examine the compromise effect across several categories in a more market-like scenario, in which experienced consumers make unforced decisions between real brands. In particular, we investigate whether the compromise effect varies in strength across the choice settings, depending on whether a hypothetical choice setting or a binding setting (in which subjects face buying obligations in terms of real payments for products) has been applied. While our results prove the robustness of the compromise effect for both choice frames, its strength differs significantly. Specifically, the compromise effect is evidently not as strong when real payments are introduced in binding choice settings. In addition, analysis of moderating factors confirms that compromise effects are stronger for categories where subjects are more in agreement about the relative quality of the options.