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successfully adopted to credibility theory in the actuarial literature. The objective of this work is to develop robust and …
Persistent link: https://www.econbiz.de/10013054067
Persistent link: https://www.econbiz.de/10012506961
An analogue can be made between: (a) the slow pace at which species adapt to an environment, which often results in the emergence of a new distinct species out of a once homogeneous genetic pool, and (b) the slow changes that take place over time within a fund, mutating its investment style. A...
Persistent link: https://www.econbiz.de/10013092381
This paper incorporates Bayesian estimation and optimization into portfolio selection framework, particularly for high-dimensional portfolio in which the number of assets is larger than the number of observations. We leverage a constrained 𝓁1 minimization approach, called linear programming...
Persistent link: https://www.econbiz.de/10013222153
The objective of this paper is to extend the results on Pseudo Maximum Likelihood (PML) theory derived in Gourieroux …(1984) to PML4 and QGPML2 methods, respectively. An asymptotic theory is developed which shows, in particular, that the …
Persistent link: https://www.econbiz.de/10003970462
returns. Simulation studies validate the theory and illustrate its finite-sample properties. Empirical studies show that the …
Persistent link: https://www.econbiz.de/10012937267
To create their rankings, university-ranking agencies usually combine multiple performance measures into a composite index. However, both rankings and index scores are sensitive to the weights assigned to performance measures. This paper uses a stochastic dominance efficiency methodology to...
Persistent link: https://www.econbiz.de/10014112285
Persistent link: https://www.econbiz.de/10003592826
A new algorithm for calibrating agent-based models is proposed, which employs a popular gradient boosting framework. Machine learning techniques are not used to develop a surrogate model, but rather assist in narrowing down the parameter space during the search for optimal parameters. Our...
Persistent link: https://www.econbiz.de/10012839291
generalizability, their relevance to applied research, and the refinement of parameter estimation techniques in item response theory …
Persistent link: https://www.econbiz.de/10014147639