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There is currently no general approach to orthogonally block two-level and multi-level orthogonal arrays and mixed-level orthogonal arrays. In this article, we present a mixed integer linear programming approach that seeks an optimal blocking arrangement for any type of regular and nonregular...
Persistent link: https://www.econbiz.de/10010710028
Persistent link: https://www.econbiz.de/10009150513
Background In the last decade, network meta-analysis of randomized controlled trials has been introduced as an extension of pairwise meta-analysis. The advantage of network meta-analysis over standard pairwise meta-analysis is that it facilitates indirect comparisons of multiple interventions...
Persistent link: https://www.econbiz.de/10011126556
the confounding problem is one of substantive inadequacy in so far as the potential error concerns subject-matter, not … addressing the confounding problem. The paper reframes the omitted variables question into a hypothesis testing problem … effectively with assessing the problem of confounding raised by the omitted variables argument. The assessment of the confouding …
Persistent link: https://www.econbiz.de/10005282282
effects such as confounding by allowing for different forms of model misspecification; a double-robust estimator also can offer …
Persistent link: https://www.econbiz.de/10005568789
Persistent link: https://www.econbiz.de/10005756214
Confounding and values {S, -S}, {C, -C}, {F, -F}. Assuming the truth we can find the impact of the cause from when the confounder … conditional independence. The paper gives a taxonomy of issues of confounding, a parameterization by risk or safety, and develops … the various cases of dependence and (conditional) independence. The paper is supported by software that allows variations …
Persistent link: https://www.econbiz.de/10005789473
that ignoring inter-dependence can introduce an upward bias in the estimate of the contagion coefficient, and using Monte …This paper presents a canonical, econometric model of contagion and investigates the conditions under which contagion … can be distinguished from inter-dependence. In a two-country (market) setup it is shown that for a range of fundamentals …
Persistent link: https://www.econbiz.de/10011402451
This paper proposes the cross-quantilogram to measure the quantile dependence between two time series. We apply it to …
Persistent link: https://www.econbiz.de/10010368200
to test for dependence in the labor allocation, addressing the importance of fringe benefits to the farm household, and …
Persistent link: https://www.econbiz.de/10011599794