In this note we propose a general testing procedure for parametric models based on Bartlett Identities. A well-known example is the Information Matrix test, which is based on the Bartlett Identity of order 1. The Identities are shown to induce a sequenceof testable restrictions on the data...

Associated with every popular nonlinear estimation method is at least one "artificial" linear regression. We define an artificial regression in terms of three conditions that it must satisfy. Then we show how artificial regressions can be useful for numerical optimization, testing hypotheses,...

In this paper we introduce the STAR-STGARCH model that can characterizenonlinear behaviour both in the conditional mean and the conditionalvariance. A modelling cycle for this family of models, consisting ofspecification, estimation, and evaluation stages is constructed.Misspecification tests...

Purpose – The main objective of this article is to propose an interpretive model that attempts to decipher a product's values in terms of functionality, usability and meaning. This model can support companies in better integrating these values in their product offering and in defining the most...

Purpose – This paper seeks to empirically investigate how a heavyweight product manager (HW) can impact the cross‐functional team and project performance (PP) through actively influencing the ways and the extent of strategic alignment (SA), shared project mission, and clarity of project...

Purpose – The operational outcomes of form postponement (FP) have been increasingly investigated in the last two decades under the effects of escalating product variety and diffusion of mass customisation strategies. However, conflicting or hard‐to‐relate findings are quite frequent in the...