Comparing Different Financial Systems
Economists all over the world are of the opinion that markets are the best system for allocating scarce resources. However, they do not seem to agree so much on what the nature of those markets should be? Countries like the United States, Japan, and France, etc. all do follow the market structure. However, there are…
The Case for a Bank Based Financial System
Most economists in the world believe that the market system is the most efficient way of allocating resources. However, there are some economists who believe that a German-style bank-based financial system has considerable merits over the market-based system. These economists believe that empirical reasoning is not valid when it comes to gauging the efficacy of…
The Clearing House System
There is much more to the international financial system than what meets the eye. For instance, if you were to ask an average person about the parties involved in making a payment, very few will come up with the term clearinghouse. This is because they think about payers, payees, and even intermediaries. However, the concept…
Stress testing is a type of simulation model which is used to manage risks in banks and other financial institutions. As a part of stress testing, various mathematical and analytical techniques are deployed to understand how an organization would react to adverse outcomes in the external environment.
Stress testing is useful to understand how a portfolio would behave if several unforeseen circumstances took place simultaneously. These simulations are not performed by normal risk management models since they are considered to be outliers. However, the entire purpose of stress testing is to verify whether the financial system is equipped to deal with exceptional situations if the need arises.
Stress testing is conducted by creating scenarios that mimic the external world. In order to be able to do so, the financial analyst needs to have a clear understanding of the factors which impact the value of underlying assets.
A combination of these factors is then called a scenario. Scenarios can be drawn up in one of two ways.
Firstly, scenarios can be created based on hypothetical data. This means that it is assumed that extreme financial events that happened in the past are about to reoccur. However, what happened in the past, many not necessarily repeat in the future. Hence, financial analysts have to get creative and think about the various scenarios which could possibly happen in the future.
After these scenarios are identified, the performance of an institution or even the entire system needs to be simulated. This means that a financial model must be prepared, which can predict how the system will react if a particular scenario actually takes place. This would involve identifying the assets which would face stress and the corresponding fall in their value. Simultaneously, the value of other assets may increase. This should also be considered in the stress test.
The possible courses of action which can be taken should also be considered. The financial impact of the decisions taken in each case should be noted down. The results can then be shared in a training session with the decision-makers. This would enable them to manage an adverse situation better as and when it occurs.
The aggregate stress testing of the financial system is quite different from the testing of an individual firm.
Aggregate tests are done in order to understand the breaking point wherein the entire financial system will collapse.
On the other hand, individual stress tests are done to understand how a particular company can reduce its exposure to the amount of risk in the economy.
The decisions taken at the end of both types of stress tests are very different. Regulators make decisions about changing the rules and regulations in the marketplace in order to make it safer and more effective. On the other hand, individual companies take decisions which help them decide the appropriate level of leverage which they should maintain
When the portfolio of the entire system is to be considered, firstly, the firms which need to be added in the analysis need to be defined. Banks and major financial institutions are always considered to be a part of the system. The problem is about which smaller firms need to be included in the analysis.
The degree of integration with other financial systems also makes it difficult to conduct stress testing.
If the market has a lot of foreign investors from a different country, then their markets will also be adversely impacted by the negative events happening in a different country. On the other hand, if these external institutions guarantee the financial well being of their local subordinates, then even the impact of local conditions is reduced significantly.
Foreign banks and companies can potentially transmit as well as absorb shocks based on their financial standing. This impact is difficult to gauge while conducting a stress test.
The methodology of stress testing also needs to be decided beforehand. The results of the stress test can be very different if the stressor factors are applied to the entire system vis-a-vis if they are applied to individual firms in the system.
The bottom line is that stress testing is a very important method for gauging the stability of the financial system. However, it is quite complex, which makes it difficult to execute in real life.
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