Reference health
A Comparison of the Efficiency of Islamic and Conventional Insurers
1 of 9 checkable references need attention · checked 2026-08-27
At the dated check, the references listed below either did not resolve in Crossref or DataCite, or carried a retraction notice. Each one is shown with the registry record that put it there.
15 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.
References needing attention
does not resolve to a known work10.2307/1391292
The 8 checked references that resolve
resolves10.1016/0304-4076(77)90052-5
Formulation and estimation of stochastic frontier production function models
resolves10.1007/bf01205442
A model for technical inefficiency effects in a stochastic frontier production function for panel data
resolves10.1596/1813-9450-5446
Islamic vs. conventional banking: business model, efficiency and stability
resolves10.1111/j.1574-0862.2010.00461.x
Effects of machinery‐sharing arrangements on farm efficiency: evidence from Sweden
resolves10.2307/2527115
Systematic Departures from the Frontier: A Framework for the Analysis of Firm Inefficiency
The 15 references without a DOI — listed, not checked
no DOI — not checkedWorld Islamic Insurance Directory
no DOI — not checkedSingapore: Ins Communications
no DOI — not checkedMENA Insurance Directory
no DOI — not checkedBest Company
no DOI — not checkedref9
no DOI — not checkedWorld insurance in 2011: Non-life ready for take-off
no DOI — not checkedref11
no DOI — not checkedref12
no DOI — not checkedref17
no DOI — not checkedAn analysis of the efficiency of Takaful and insurance companies in Malaysia: A nonparametric approach
no DOI — not checkedref20
no DOI — not checkedref21
no DOI — not checkedref22
no DOI — not checkedref23
no DOI — not checkedref24
What this badge says. CiteStamped means the CHECKABLE references of this
work were clean at the dated check: each resolved to a known work in a public registry, and none
carried a retraction notice at that time. It says nothing about the quality, findings,
or importance of the work itself, and nothing about references deposited without a DOI.
checked 2026-08-27 — 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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