Comment: Are Marginal Models Needed?

Wermuth Comment : Are Marginal Models Needed ?

What dynamic capabilities are needed in ERP activity?

Although many scholars have proposed all kinds of key successful factors (KSFs) for ERP activity to smoothly enhance the implementation of ERP, the KSFs are based too much on concept and protocol cannot help an enterprise to achieve this objective. Therefore, this research through qualitative interview method, integrating the KSFs and dynamic capability to set up a model so as to exhibit the ki...

Mixtures of Marginal Models

In this paper, we adapt a mixture model originally developed for regression models with independent data for the more general case of correlated outcome data, which includes longitudinal data as a special case. The estimation is performed by a gener-alisation of the EM algorithm which we call the Expectation-Solution (ES) algorithm. In this ES algorithm the M-step of the EM algorithm is replace...

Marginal inferential models

Inferential models (IMs) provide a general framework for prior-free, frequencycalibrated, posterior probabilistic inference. The fundamental idea is the use of unobservable auxiliary variables to describe the underlying uncertainty about the parameter of interest. When nuisance parameters are present, a marginalization step can reduce the dimension of the auxiliary variable, which in turn leads...

Comment on : Are behavioral asset - pricing models structural ? $ Jessica

According to Stanley Zin, financial economists on both sides of the behavioral finance debate have failed to ask the right questions. To Zin, the most important question we should ask about behavioral models is whether they make accurate predictions. Structural models at least have prediction as their goal, whether or not they achieve it. Implicit in this view is the notion that structural mode...