Showing 1 - 10 of 11
Persistent link: https://www.econbiz.de/10009306343
Principle-agent theory suggests managers might under-invest into R&D for reasons of risk tied to project failure, such … as reduced remuneration and job loss. However, managers might over-invest into innovation for reasons of growth implying … higher remuneration, power and prestige. Using a sample of 1,406 Belgian firms, we find, first, that managers holding no …
Persistent link: https://www.econbiz.de/10008938024
Principle-agent theory suggests managers might under-invest into R&D for reasons of risk tied to project failure, such … as reduced remuneration and job loss. However, managers might over-invest into innovation for reasons of growth implying … higher remuneration, power and prestige. Using a sample of 1,406 Belgian firms, we find, first, that managers holding no …
Persistent link: https://www.econbiz.de/10014181017
Principle-agent theory suggests managers might under-invest into R&D for reasons of risk tied to project failure, such … as reduced remuneration and job loss. However, managers might over-invest into innovation for reasons of growth implying … higher remuneration, power and prestige. Using a sample of 1,406 Belgian firms, we find, first, that managers holding no …
Persistent link: https://www.econbiz.de/10013068231
Persistent link: https://www.econbiz.de/10001399757
We propose a novel multivariate GARCH model that incorporates realized measures for the variance matrix of returns. The key novelty is the joint formulation of a multivariate dynamic model for outer-products of returns, realized variances and realized covariances. The updating of the variance...
Persistent link: https://www.econbiz.de/10011520881
This paper considers spot variance path estimation from datasets of intraday high frequency asset prices in the presence of diurnal variance patterns, jumps, leverage effects and microstructure noise. We rely on parametric and nonparametric methods. The estimated spot variance path can be used...
Persistent link: https://www.econbiz.de/10011379469
We examine whether stock prices fully reflect the value of firms' intangible assets, focusing on research and development (R&D). Since intangible assets are not reported on financial statements under current U.S. accounting standards and R&D spending is expensed, the valuation problem may be...
Persistent link: https://www.econbiz.de/10012471566
We evaluate the performance of different models for the covariance structure of stock returns, focusing on their use for optimal portfolio selection. Comparisons are based on forecasts of future covariances as well as the out-of-sample volatility of optimized portfolios from each model. A few...
Persistent link: https://www.econbiz.de/10012471761
We evaluate the performance of different models for the covariance structure of stock returns, focusing on their use for optimal portfolio selection. Comparisons are based on forecasts of future covariances as well as the out-of-sample volatility of optimized portfolios from each model. A few...
Persistent link: https://www.econbiz.de/10012763801