Forecasting Currency Crises: Which Methods signaled the South African Crisis of June 2006?
Tobias Knedlik, Rolf Scheufele
South African Journal of Economics,
2008
Abstract
In this paper we test the ability of three of the most popular methods to forecast South African currency crises with a special emphasis on their out-of-sample performance. We choose the latest crisis of June 2006 to conduct an out-of-sample experiment. The results show that the signals approach was not able to forecast the out-of-sample crisis correctly; the probit approach was able
to predict the crisis but only with models, that were based on raw data. The Markov-regime- switching approach predicts the out-of-sample crisis well. However, the results are not straightforward. In-sample, the probit models performed remarkably well and were also able to detect, at least to some extent, out-of-sample currency crises before their occurrence. The recommendation is to not restrict the forecasting to only one approach.
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Three methods of forecasting currency crises: Which made the run in signaling the South African currency crisis of June 2006?
Tobias Knedlik, Rolf Scheufele
IWH Discussion Papers,
No. 17,
2007
Abstract
In this paper we test the ability of three of the most popular methods to forecast the South African currency crisis of June 2006. In particular we are interested in the out-ofsample performance of these methods. Thus, we choose the latest crisis to conduct an out-of-sample experiment. In sum, the signals approach was not able to forecast the outof- sample crisis of correctly; the probit approach was able to predict the crisis but just with models, that were based on raw data. Employing a Markov-regime-switching approach also allows to predict the out-of-sample crisis. The answer to the question of which method made the run in forecasting the June 2006 currency crisis is: the Markovswitching approach, since it called most of the pre-crisis periods correctly. However, the “victory” is not straightforward. In-sample, the probit models perform remarkably well and it is also able to detect, at least to some extent, out-of-sample currency crises before their occurrence. It can, therefore, not be recommended to focus on one approach only when evaluating the risk for currency crises.
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Market Follows Standards
Ulrich Blum
Wirtschaft im Wandel,
No. 10,
2007
Abstract
Standards are an important part of the codified knowledge of a society. In contrast to industry standards, formal standards are created in a consensus-based procedure open to all interested parties. Only if an economic interest for application exists will formal standards be produced. Interested parties have to shoulder participation costs themselves, which enforces economic interest. Up to a certain extent, governments also trigger and finance formal standardisation processes through the new approach, which creates a framework that is filled by private activity. Standards stand at the end of intellectual property rights if the totality of the value chain of knowledge production is looked at. One important aspect is their accessibility and the inclusion of all necessary intellectual property rights, especially patents, at reasonable prices. Conversely, consortia may exclude groups from the use of their standards. By preventing the licensing of those patents included in a standard, they can effectively block market entry. Thus, “successful” standards often face antitrust problems. Formal standards reduce costs of production through economies of scale, economies of scope and network-economies. Goods and processes that are standardized signal quality, the inclusion of high technological standards and permanent presence in the markets, which again accelerates market dissemination. Firms face a dilemma: On the one hand, the penetration of a markets with industry standards offers potentials for high profits; on the other hand, this has to be balanced against the risk of failure, especially if clients are hesitant because they do not know which standard will be successful in the end. Formal standards create and stabilize trust markets. This is especially true in the area of globalisation. Europe, which has to face an enormous competition in the international knowledge economy, needs an institutionally efficient approach to formal standardisation. This contribution addresses future problems of the European standardisation that have been developed within the framework of a working group of the European Standardisation Organisation called Future Landscape of European Standardisation (FLES).
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Signaling Currency Crises in South Africa
Tobias Knedlik
IWH Discussion Papers,
No. 19,
2006
Abstract
Currency crises episodes of 1996, 1998, and 2001 are used to identify common country specific causes of currency crises in South Africa. The paper identifies crises by the use of an Exchange Market Pressure (EMP) index as introduced by Eichengreen, Rose and Wyplosz (1996). It extends the Signals Approach introduced by Kaminsky and Reinhart (1996, 1998) by developing a composite indicator in order to measure the evolution of currency crisis risk in South Africa. The analysis considers the standard suspects from international currency crises and country specifics as identified by the Myburgh Commission (2002) and current literature as potentially relevant indicators.
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The IWH signals approach: the present potential for a financial crisis in selected Central and East European countries and Turkey
Hubert Gabrisch, Simone Lösel
Wirtschaft im Wandel,
No. 8,
2006
Abstract
The steep increase of oil prices, general threats rooting from Iran’s nuclear program, and doubts about the future policy of important central banks recently caused more uncertainties of investors on international financial markets. This explains the higher volatility and the fall of indices on stock markets including those of some Central and East European countries. International investors could respond with adjustments of their portfolio and trigger off a financial crisis. On this background, the article studies the potential for a financial crises in the region mentioned. The analytical tool is the IWH signals approach. The study concludes that the risk of the outbreak of a financial crisis within the next 18 months is rather unrealistic in most countries. A stable economic policy, high real growth rates, a financial system already robust compared to earlier times of transition, and appropriate exchange rate arrangements protect the countries against speculative attacks and portfolio adjustments. When the composite indicator shows deterioration like in the Baltic countries, it turned out to be negligible. For the Slovak Republic and Slovenia, the composite indicator even improved. A closer look to individual indicators reveals still some problems in the banking sectors of the Czech Republic, Poland, and Hungary, however, without out major impact on the composite indicator.
This general assessment does not apply to Romania, and, in particular, to Turkey. The composite indicator signals a significant increase of the risk potential for the next 18 months in both countries. There is a considerable need for sound policy action.
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Signaling currency crises in South Africa
Tobias Knedlik
South African Reserve Bank: Macroeconomic Policy Challenges for South Africa Conference, South African Reserve Bank,
2006
Abstract
Currency crises episodes of 1996, 1998, and 2001 are used to identify common country specific causes of currency crises in South Africa. The paper identifies crises by the use of an Exchange Market Pressure (EMP) index as introduced by Eichengreen, Rose and Wyplosz (1996). It extends the Signals Approach introduced by Kaminsky and Reinhart (1996, 1998) by developing a composite indicator in order to measure the evolution of currency crisis risk in South Africa. The analysis considers the standard suspects from international currency crises and country specifics as identified by the Myburgh Commission (2002) and current literature as potentially relevant indicators.
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Empirical methods for analysising the risks of financial crises
Axel Brüggemann, Thomas Linne
IWH-Sonderhefte,
No. 3,
2003
Abstract
he vulnerability against financial crises of EU candidate countries and other Central and East European countries is on the agenda of the Institute for Economic Research Halle. Research concentrates on the developing of effective early warning indicators and includes a strong orientation on quantitative methods. This volume presents selected methods for the analyse of financial fragility. The finding complete the signals approach, which is used by the IWH for routine checks of the risk potential of EU candidate an other countries of the region. The four studies presented here were written by the scientific staff of the IWH and by guest researchers. Their objective is to deepen insights into selected problems of financial fragility by using alternative methods.
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Are the Central and Eastern European Transition Countries still vullnerable to an Financial Crisis? Results from the Signals Approach
Axel Brüggemann, Thomas Linne
IWH Discussion Papers,
No. 157,
2002
Abstract
The aim of the paper is to analyse the vulnerability of the Central and Eastern European accession countries to the EU as well as that of Turkey and Russia to a financial crisis. Our methodology is an extension of the signals approach. We develop a composite indicator to measure the evolution of the risk potential in each country. Our findings show that crises in Central and Eastern Europe are caused by much the usual suspects as in others emerging markets. In particular an overvalued exchange rate, weak exports and dwindling currency reserves have good predictive power for assessing crisis vulnerabilities.
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