Search Results - subject:"Null Model"

Measuring industry relatedness and corporate coherence

Bottazzi, Giulio; Pirino, Davide - 2010

Since the seminal work of Teece et al. (1994) firm diversification has been found to be a non-random process. The hidden deterministic nature of the diversification patterns is usually detected comparing expected (under a null hypothesys) and actual values of some statistics. Nevertheless the...

Persistent link: https://www.econbiz.de/10010328397

Measuring Industry Relatedness and Corporate Coherence

Bottazzi, Giulio; Pirino, Davide - Laboratory of Economics and Management (LEM), Scuola … - 2010

Persistent link: https://www.econbiz.de/10008495301

Robust Statistical Tests for Detecting the Effects of Interspecific Competition on Ecological Communities

Ladau, Joshua - 2005

toward resolving the debate has been null model testing. The testing begins by assuming a null hypothesis that is reflective …. Unfortunately, as I show here, all existing null model tests are biased or non-robust. Although both qualities are problematic, the …

Persistent link: https://www.econbiz.de/10009466183