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In recent years support vector regression (SVR), a novel neural network (NN) technique, has been successfully used for financial forecasting. This paper deals with the application of SVR in volatility forecasting. Based on a recurrent SVR, a GARCH method is proposed and is compared with a moving...
Persistent link: https://www.econbiz.de/10003636113
In recent years, support vector regression (SVR), a novel neural network (NN) technique, has been successfully used for financial forecasting. This paper deals with the application of SVR in volatility forecasting. Based on a recurrent SVR, a GARCH method is proposed and is compared with a...
Persistent link: https://www.econbiz.de/10012966267
In this study we investigate how bankruptcy affects the market behaviour of prices of stocks on Warsaw’s Stock Exchange. As the behaviour of prices can be seen in a myriad of ways, we investigate a particular aspect of this behaviour, namely the predictability of these price formation...
Persistent link: https://www.econbiz.de/10011539782
We estimate and test several default risk models using new and unique data on corporate defaults in the German stock market. While defaults were extremely rare events in the 1990s, they have been a characteristic feature of the German stock market since the early 2000s. We apply the structural...
Persistent link: https://www.econbiz.de/10012983935
This paper introduces the quantile regression- based Distance-to-Default to Probability of Default (DD-PD) mapping, which links individual firms' DD to their real world PD. Since changes in the DD depend on a handful of parameters, the mapping easily accommodates shocks arising from quantitative...
Persistent link: https://www.econbiz.de/10012613371
Using a structural model of default, we construct a measure of systemic default defined as the probability that many firms default at the same time. We account for correlations in defaults between firms through exposures to common shocks. The systemic default measure spikes during recession...
Persistent link: https://www.econbiz.de/10011810905
Persistent link: https://www.econbiz.de/10014250993
While empirical literature has documented a negative relation between default risk and stock returns, theory suggests that default risk should be positively priced. In this paper, we calculate monthly probabilities of default (PDs) for a large sample of European firms and break them down into...
Persistent link: https://www.econbiz.de/10013006759
We document the negative effect of stock liquidity on default risk for a sample of 46 countries. We further find that default risk declines following the introduction of the Directive on Markets in Financial Instruments (MiFID)—an exogenous shock that increases liquidity. The effect of...
Persistent link: https://www.econbiz.de/10012854783
In recent years, a number of papers have established a new empirical regularity. Stocks of distressed firms vastly underperform those of financially healthy firms. It is not necessary to attribute the negative excess returns of distressed firms to inefficient or irrational markets. We show that...
Persistent link: https://www.econbiz.de/10012991210