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Is network meta-analysis as valid as standard pairwise meta-analysis? It all depends on the distribution of effect modifiers
Jansen, Jeroen P.; Naci, Huseyin - London School of Economics (LSE) - 2013
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
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Indirect treatment comparison
Miladinovic, Branko; Chaimani, Anna; Hozo, Iztok; … - In: Stata Journal 14 (2014) 1, pp. 76-86
This article presents a command, indirect, for the estimation of effects of multiple treatments in the absence of randomized controlled trials for direct comparisons of interventions. Copyright 2014 by StataCorp LP.
Persistent link: https://www.econbiz.de/10010756302
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Methodological Considerations in Cost-Effectiveness Analysis
Alemayehu, Demissie - International Institute of Social and Economic Sciences - 2014
In decision making regarding optimal resource allocation to safeguard public health, policymakers and healthcare providers rely on the availability and reliability of data about the relative costs and benefits of competing treatment options. One such an approach is based on cost effectiveness...
Persistent link: https://www.econbiz.de/10011207344
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A new sufficient condition for identifiability of countably infinite mixtures
Yang, Lei; Wu, Xianyi - In: Metrika 77 (2014) 3, pp. 377-387
While identifiability of finite mixtures for a wide range of distributions has been studied by statisticians for … identifiability is well established and then explore the identifiability for several distribution families, including normal, gamma …
Persistent link: https://www.econbiz.de/10010995142
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Bayesian Exploratory Factor Analysis
Conti, Gabriella; Frühwirth-Schnatter, Sylvia; … - Institute for the Study of Labor (IZA) - 2014
This paper develops and applies a Bayesian approach to Exploratory Factor Analysis that improves on ad hoc classical approaches. Our framework relies on dedicated factor models and simultaneously determines the number of factors, the allocation of each measurement to a unique factor, and the...
Persistent link: https://www.econbiz.de/10010884284
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The effect of identifiability on the relationship between risk attitudes and other-regarding concerns
Koukoumelis, Anastasios; Levati, M. Vittoria; Ploner, Matteo - Wirtschaftswissenschaftliche Fakultät, … - 2013
Previous studies have shown that other-regarding concerns are weakened under risky situations. Daily experience also suggests that people care more about an identifiable than about an unidentifiable third person. We report on an experiment designed to explore whether rendering the other...
Persistent link: https://www.econbiz.de/10010884478
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PROMISE KEEPING, RELATIONAL CLOSENESS, AND IDENTIFIABILITY: AN EXPERIMENTAL INVESTIGATION IN CHINA
Cadsby, C. Bram; Du, Ninghua; Song, Fei; Yao, Lan - Department of Economics and Finance, College of … - 2014
actors and (ii) the ability of the actors to observe each other’s identity after the repayment decision (identifiability … especially salient, and also perform the identifiability treatment in New Zealand as a cultural control. We find that in China …, these two factors are substitutes for each other. In New Zealand, there was no significant identifiability effect on promise …
Persistent link: https://www.econbiz.de/10010885966
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A note on the identifiability of nonparametric and semiparametric mixtures of GLMs
Wang, Shaoli; Yao, Weixin; Huang, Mian - In: Statistics & Probability Letters 93 (2014) C, pp. 41-45
mixture of GLMs, and then establish identifiability results under mild conditions. …
Persistent link: https://www.econbiz.de/10010906218
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Estimating the transition matrix of a Markov chain observed at random times
Barsotti, Flavia; De Castro, Yohann; Espinasse, Thibault; … - In: Statistics & Probability Letters 94 (2014) C, pp. 98-105
We want to recover the transition kernel P of a Markov chain X when only a sub-sequence of X is available. The time gaps between the observations are iid with unknown distribution. We propose a method to build an estimator of P under the assumption that it has some zero entries. Its asymptotic...
Persistent link: https://www.econbiz.de/10010930576
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Mixed Hitting-Time Models
Abbring, Jaap H. - Tinbergen Instituut
proportional hazards (MPH) structure. We show how strategies for analyzing the MPH model's identifiability can be adapted to prove … identifiability of an MHT model with observed regressors and unobserved heterogeneity. We discuss inference from censored data and …
Persistent link: https://www.econbiz.de/10011255698