Showing 1 - 10 of 33
Current practice largely follows restrictive approaches to market risk measurement, such as historical simulation or … produce more accurate risk assessments, treating both portfolio-level and asset-level analysis. Asset-level analysis is … particularly challenging because the demands of real-world risk management in financial institutions - in particular, real …
Persistent link: https://www.econbiz.de/10012460575
It depends. If volatility fluctuates in a forecastable way, then volatility forecasts are useful for risk management …; hence the interest in volatility forecastability in the risk management literature. Volatility forecastability, however … volatility forecastability decays quickly with horizon. Volatility forecastability, although clearly of relevance for risk …
Persistent link: https://www.econbiz.de/10012471968
We propose several connectedness measures built from pieces of variance decompositions, and we argue that they provide natural and insightful measures of connectedness among financial asset returns and volatilities. We also show that variance decompositions define weighted, directed networks, so...
Persistent link: https://www.econbiz.de/10012461167
What do academics have to offer market risk management practitioners in financial institutions? Current industry … assessments of market risk. Clearly, the demands of real-world risk management in financial institutions -- in particular, real …-time risk tracking in very high-dimensional situations -- impose strict limits on model complexity. Hence we stress parsimonious …
Persistent link: https://www.econbiz.de/10012467618
Volatility has been one of the most active areas of research in empirical finance and time series econometrics during the past decade. This chapter provides a unified continuous-time, frictionless, no-arbitrage framework for systematically categorizing the various volatility concepts,...
Persistent link: https://www.econbiz.de/10012469613
and forecasting. Building on the theory of continuous-time arbitrage-free price processes and the theory of quadratic … the large covariance matrices relevant in asset pricing, asset allocation and financial risk management applications …
Persistent link: https://www.econbiz.de/10012470566
that we make precise. A Monte Carlo analysis supports the relevance of the theory and produces additional insights …
Persistent link: https://www.econbiz.de/10012470744
hold promise for the development of better decision making in practical situations of risk management, portfolio allocation …
Persistent link: https://www.econbiz.de/10012470803
It is well known that high-frequency asset returns are fat-tailed relative to the Gaussian distribution tails are typically reduced but not eliminated when returns are standardized by volatilities estimated from popular models such as GARCH. We consider two major dollar exchange rates, and we...
Persistent link: https://www.econbiz.de/10012471288
Using high-frequency data on Deutschemark and Yen returns against the dollar, we construct model-free estimates of daily exchange rate volatility and correlation, covering an entire decade. In addition to being model-free, our estimates are also approximately free of measurement error under...
Persistent link: https://www.econbiz.de/10012471846