Results 81 to 90 of about 17,240 (299)

A Test for the Presence of Central Bank Intervention in the Foreign Exchange Market With an Application to the Bank of Canada [PDF]

open access: yes
We propose a general non-linear simultaneous equations framework for the econometric analysis of models of intervention in foreign exchange markets by central banks in response to deviations of exchange rates from target levels.
Douglas James Hodgson
core  

Motive and Opportunity: Order Choice in a Limit Order Book With Dispersed Information

open access: yesInternational Journal of Finance &Economics, EarlyView.
ABSTRACT We test predictions of market microstructure theory relating to the determinants of order choice in a limit order book where information is dispersed among traders. Using an experimental limit order book, with a large state space, we find that informed traders exhibit patience, compatible with the ‘waiting game’ behaviour described in Foster ...
James Steeley   +2 more
wiley   +1 more source

Semiparametric estimation for incoherent optical imaging

open access: yesPhysical Review Research, 2019
The theory of semiparametric estimation offers an elegant way of computing the Cramér-Rao bound for a parameter of interest in the midst of infinitely many nuisance parameters.
Mankei Tsang
doaj   +1 more source

Estimating Functions and Equations: An Essay on Historical Developments with Applications to Econometrics [PDF]

open access: yes
The idea of using estimating functions goes a long way back, at least to Karl Pearson's introduction to the method of moments in 1894. It is now a very active area of research in the statistics literature. One aim of this chapter is to provide an account
Anil K Bera   +2 more
core  

A Smoothed P-Value Test When There is a Nuisance Parameter under the Alternative

open access: yes, 2022
We present a new test when there is a nuisance parameter under the alternative hypothesis. The test exploits the p-value occupation time [PVOT], the measure of the nuisance parameter subset on which a p-value test based on a a test statistic rejects the ...
Hill, Jonathan B.
core  

Disrupted Brain Structure and Function in Alzheimer's Disease Patients With Behavioral and Psychological Symptoms

open access: yesiNew Medicine, EarlyView.
ABSTRACT Behavioral and psychological symptoms of dementia (BPSD) are highly prevalent in Alzheimer's disease (AD), but the underlying mechanisms are unclear. This study aims to elucidate the neuropathological mechanisms underlying BPSD by investigating gray matter volume (GMV) and brain connectivity in AD patients with and without BPSD.
Xuerui Pang   +8 more
wiley   +1 more source

Pairwise Likelihood Estimation of the 2PL Model with Locally Dependent Item Responses

open access: yesApplied Sciences
The local independence assumption is crucial for the consistent estimation of item parameters in item response theory models. This article explores a pairwise likelihood estimation approach for the two-parameter logistic (2PL) model that treats the local
Alexander Robitzsch
doaj   +1 more source

Models of foreign exchange intervention: Estimation and testing [PDF]

open access: yes
We propose a general non-linear simultaneous equations framework for the econometric analysis of models of intervention in foreign exchange markets by central banks in response to deviations of exchange rates from possibly time-varying target levels.
Bryan W. Brown; Douglas J. Hodgson
core  

Revisiting EWMA in High‐Frequency‐Based Portfolio Optimization: A Comparative Assessment

open access: yesJournal of Applied Econometrics, EarlyView.
ABSTRACT This paper compares the statistical and economic performance of state‐of‐the‐art high‐frequency (HF) based multivariate volatility models with a simpler, widely used alternative, the Exponentially Weighted Moving Average (EWMA) filter. Using over two decades of 100 U.S.
Laura Capera Romero, Anne Opschoor
wiley   +1 more source

ESTIMATION OF SCALE PARAMETER UNDER A REFLECTED GAMMA LOSS FUNCTION [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 1999
In this paper, the estimation of a scale parameter t under a new and bounded loss function, based on a reflection of the gamma density function, is discussed.
doaj  

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