Showing 1 - 10 of 10
Markets reacted strongly to the World Trade Center attacks both in Europe and in the United States. The extent of this crisis was difficult to assess at the time, underlining the need for a specific tool to measure the magnitude of financial crises. A first measure was recently proposed and...
Persistent link: https://www.econbiz.de/10010744901
This paper estimates the implied stochastic process of the volatility of the Swiss market index (SMI) from the prices … option pricing model of Duan (1991), the implied volatility process is estimated by a simulation minimization method from … option price data. We find the persistence of volatility shocks implied by options on the SMI to be very close to that …
Persistent link: https://www.econbiz.de/10010746119
We investigate a new separable nonparametric model for time series, which includes many ARCH models and AR models already discussed in the literature. We also propose a new estimation procedure based on a localization of the econometric method of instrumental variables. Our method has...
Persistent link: https://www.econbiz.de/10010746316
We investigate a class of semiparametric ARCH(∞) models that includes as a special case the partially nonparametric (PNP) model introduced by Engle and Ng (1993) and which allows for both flexible dynamics and flexible function form with regard to the 'news impact' function. We propose an...
Persistent link: https://www.econbiz.de/10011126295
This review article tries to answer four questions: (i) what are the stylized facts about uncertainty over time; (ii) why does uncertainty vary; (iii) do fluctuations in uncertainty matter; and (iv) did higher uncertainty worsen the Great Recession of 2007-2009? On the first question both macro...
Persistent link: https://www.econbiz.de/10011126328
We investigate a class of semiparametric ARCH(∞) models that includes as a special case the partially nonparametric (PNP) model introduced by Engle and Ng (1993) and which allows for both flexible dynamics and flexible function form with regard to the 'news impact' function. We propose an...
Persistent link: https://www.econbiz.de/10011071447
lower the volatility of output growth. Technological complexity evolves endogenously in response to profit incentives. The … decline in volatility thus arises as a by-product of firms’ incentives to increase profits and is hence a likely outcome of … that for reasonable parameter values, the model can generate a decline in volatility with the level of development …
Persistent link: https://www.econbiz.de/10010928680
volatility into these four sources, quantify their contribution to aggregate volatility, and study how they relate to the stage …, and slowly increases at later stages of development. Third, the volatility of country-specific macroeconomic shocks falls … with the level of development. We argue that many theories linking volatility and development are not consistent with these …
Persistent link: https://www.econbiz.de/10010884605
GARCH models are commonly used as latent processes in econometrics, financial economics and macroeconomics. Yet no exact likelihood analysis of these models has been provided so far. In this paper we outline the issues and suggest a Markov chain Monte Carlo algorithm which allows the calculation...
Persistent link: https://www.econbiz.de/10010884643
We investigate a new separable nonparametric model for time series, which includes many ARCH models and AR models already discussed in the literature. We also propose a new estimation procedure based on a localization of the econometric method of instrumental variables. Our method has...
Persistent link: https://www.econbiz.de/10010884733