Results 21 to 30 of about 45,340 (210)

Semiparametric Estimation of Risk–Return Relationships [PDF]

open access: yesJournal of Business & Economic Statistics, 2017
This article proposes semiparametric generalized least-squares estimation of parametric restrictions between the conditional mean and the conditional variance of excess returns given a set of parametric factors. A distinctive feature of our estimator is that it does not require a fully parametric model for the conditional mean and variance.
Escanciano, J.C.   +2 more
openaire   +5 more sources

Semiparametric counterfactual density estimation

open access: yesBiometrika, 2023
AbstractCausal effects are often characterized with averages, which can give an incomplete picture of the underlying counterfactual distributions. Here we consider estimating the entire counterfactual density and generic functionals thereof. We focus on two kinds of target parameters: density approximations and the distance between counterfactual ...
By Kennedy, E. H.   +2 more
openaire   +3 more sources

The influence function of semiparametric estimators [PDF]

open access: yesQuantitative Economics, 2015
There are many economic parameters that depend on nonparametric first steps. Examples include games, dynamic discrete choice, average exact consumer surplus, and treatment effects. Often estimators of these parameters are asymptotically equivalent to a sample average of an object referred to as the influence function.
Hidehiko Ichimura, Whitney K. Newey
openaire   +7 more sources

Semi- and Nonparametric ARCH Processes

open access: yesJournal of Probability and Statistics, 2011
ARCH/GARCH modelling has been successfully applied in empirical finance for many years. This paper surveys the semiparametric and nonparametric methods in univariate and multivariate ARCH/GARCH models.
Oliver B. Linton, Yang Yan
doaj   +1 more source

Semiparametric Semivariogram Modeling with a Scaling Criterion for Node Spacing: A Case Study of Solar Radiation Distribution in Thailand

open access: yesMathematics, 2020
Geostatistical interpolation methods, sometimes referred to as kriging, have been proven effective and efficient for the estimation of target quantity at ungauged sites.
Sompop Moonchai, Nawinda Chutsagulprom
doaj   +1 more source

Semiparametric Additive Beta Regression Models

open access: yesRevstat Statistical Journal, 2021
In this paper, we study a semiparametric additive beta regression model using a parameterization based on the mean and a dispersion parameter. This model is useful for situations where the response variable is continuous and restricted to the unit ...
Germán Ibacache-Pulgar   +2 more
doaj   +1 more source

Semiparametric Stein estimators

open access: yesJournal of the Korean Statistical Society, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Department of Statistics, University of Florida, Gainesville, FL 32611-8545, USA ( host institution )   +2 more
openaire   +3 more sources

An introduction to pspatreg

open access: yesREGION, 2022
This article introduces a new R package (pspatreg) for the estimation of semiparametric spatial autoregressive models. pspatreg fits penalized spline semiparametric spatial autoregressive models via Restricted Maximum Likelihood or Maximum Likelihood ...
Román Mínguez   +2 more
doaj   +1 more source

Research on the Value at Risk of Basis for Stock Index Futures Hedging in China Based on Two-State Markov Process and Semiparametric RS-GARCH Model

open access: yesDiscrete Dynamics in Nature and Society, 2019
This article aims to investigate the Value at Risk of basis for stock index futures hedging in China. Since the RS-GARCH model can effectively describe the state transition of variance in VaR and the two-state Markov process can significantly reduce the ...
Liang Wang   +3 more
doaj   +1 more source

Improving Forecasts of the EGARCH Model Using Artificial Neural Network and Fuzzy Inference System

open access: yesJournal of Mathematics, 2020
This paper proposes an innovative semiparametric nonlinear fuzzy-EGARCH-ANN model to solve the problem of accurate modeling for forecasting stock market volatility.
Geleta T. Mohammed   +2 more
doaj   +1 more source

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