Reference health
Focused Shrinkage with an Application to Portfolio Choice
28/28 checkable references clean · checked 2026-08-07
Every reference with a DOI in the deposited reference list resolved to a known work in Crossref or DataCite at the dated check, and none carried a retraction, withdrawal, or removal notice.
2 without a DOI — not checked. A reference deposited without a DOI is never matched by title or guessed at; it stays outside the checked set, and this line discloses that.
The 28 checked references that resolve
resolves10.1214/aos/1176343356
Admissible Minimax Estimation of a Multivariate Normal Mean with Arbitrary Quadratic Loss
resolves10.1016/0047-259x(76)90035-x
Minimax estimation of a multivariate normal mean under arbitrary quadratic loss
resolves10.1214/aos/1176343898
Minimax Estimation of a Normal Mean Vector for Arbitrary Quadratic Loss and Unknown Covariance Matrix
resolves10.1214/aoms/1177699174
Estimating the Mean of a Multivariate Normal Population with General Quadratic Loss Function
resolves10.1287/mnsc.1080.0986
A Generalized Approach to Portfolio Optimization: Improving Performance by Constraining Portfolio Norms
resolves10.1016/j.jeconom.2008.09.017
High dimensional covariance matrix estimation using a factor model
resolves10.2307/1912358
Multicollinearity and the Minimax Conditions of the Bock Stein-like Estimator
resolves10.2307/2526079
A Comparison of Traditional and Stein-Rule Estimators under Weighted Squared Error Loss
resolves10.1016/s0927-5398(03)00007-0
Improved estimation of the covariance matrix of stock returns with an application to portfolio selection
resolves10.1016/s0047-259x(03)00096-4
A well-conditioned estimator for large-dimensional covariance matrices
resolves10.1016/0047-259x(82)90020-3
Contracting towards subspaces when estimating the mean of a multivariate normal distribution
The 2 references without a DOI — listed, not checked
no DOI — not checkedEstimation with Quadratic Loss
no DOI — not checkedAn Approach to the Recovery of Inter-Block Information in Balanced Incomplete Block Designs
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or importance of the work itself, and nothing about references deposited without a DOI.
checked 2026-08-07 — re-checked daily as this page is visited; titles and statuses come from Crossref and DataCite and are not part of the signed record
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