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Alexander Izmailov, Ph.D (theoretical physics) and Brian Shay, Ph.D (mathematics) of Market Memory Trading, L.L.C., present in a series of nine (9) white papers, aspects of a revolutionary advance in uncovering hidden dependencies via filtering noise from correlation matrices developed by the...
Persistent link: https://www.econbiz.de/10013062120
Alexander Izmailov, Ph.D (theoretical physics) and Brian Shay, Ph.D (mathematics) of Market Memory Trading, L.L.C., present in a series of nine (9) white papers, aspects of a revolutionary advance in uncovering hidden dependencies via filtering noise from correlation matrices developed by the...
Persistent link: https://www.econbiz.de/10013062139
most powerful. The proposed procedure is compared with predominant existing tests in structure, theory and simulation. …
Persistent link: https://www.econbiz.de/10009567851
tests. A full asymptotic theory is provided for the baseline. Simulation results show that the finite-sample performance of … the test matches the theory quite well. -- Tests ; multiple inequality constraints ; exactness ; similarity on the …
Persistent link: https://www.econbiz.de/10003847567
In this supplemental article, we introduce some useful results in spectral theory and perturbation theory. Some of the …
Persistent link: https://www.econbiz.de/10012822551
estimation with parameters whose dimension grows with sample size. A change-of-measure argument, inspired by Le Cam's theory of …
Persistent link: https://www.econbiz.de/10012857026
We characterize the quasi-likelihood functions that may elicit expectiles and find that the family has a unique representation under standard conditions for linear regression. The only distribution that elicits expectiles as its quasi-maximum likelihood estimator under general conditions is an...
Persistent link: https://www.econbiz.de/10014262475
This paper summarizes and assesses several of the most popular methods to seasonally adjust weekly data. The industry standard approach, known as X-13ARIMA-SEATS, is suitable only for monthly or quarterly data. Given the increased availability and promise of non-traditional data at higher...
Persistent link: https://www.econbiz.de/10015115015
The logit-weighted reduced mixture of experts model (LRMoE) is a flexible yet analytically tractable non-linear regression model. While it has shown usefulness in modeling insurance loss frequencies and severities, model calibration becomes challenging when censored and truncated data are...
Persistent link: https://www.econbiz.de/10013251843
We extend the maximum likelihood estimation method of Ait-Sahalia (2002) for time-homogeneous diffusions to time-inhomogeneous ones. We derive a closed-form approximation of the likelihood function for discretely sampled time-inhomogeneous diffusions, and prove that this approximation converges...
Persistent link: https://www.econbiz.de/10014108956