Showing 1 - 10 of 13
We present an ex-post analysis of the effects of GDF’s acquisition of Suez in 2006 created one of the world’s largest energy companies. We perform an econometric analysis, based on Difference-in-Difference techniques on the market for trading on the Zeebrugge gas hub in Belgium. Removing...
Persistent link: https://www.econbiz.de/10011654446
Like other data quality dimensions, the concept of accuracy is often adopted to characterise a particular data set. However, its common specification basically refers to statistical properties of estimators, which can hardly be proved by means of a single survey at hand. This ambiguity can be...
Persistent link: https://www.econbiz.de/10003327220
Persistent link: https://www.econbiz.de/10003618781
Design-based estimators of totals, means or proportions in finite populations generally are functions of weighted sums. If each element selected into the sample is also observed, then for the calculation of the pi-estimator these weights are just the inverse inclusion probabilities of the...
Persistent link: https://www.econbiz.de/10011432737
In this paper, a weight is derived for the calculation of design based estimators of totals, means and proportions using the ongoing German Socio-Economic Panel (GSOEP) and a new cross-sectional sample. In the first part of the paper, the selection schemes of the subsamples A, B, C and D of the...
Persistent link: https://www.econbiz.de/10011432744
In this paper R2-type measures of the explanatory power of multivariate linear and categorical probit models proposed in the literature are reviewed and their deficiencies are discussed. It is argued that a measure of the explanatory power should take into account the components which are...
Persistent link: https://www.econbiz.de/10011436274
Persistent link: https://www.econbiz.de/10002009009
We analyze a client's choice of contract in auctions where Dutch law firms compete for cases. The distinguishing feature is that lawyers may submit bids with any fee arrangement they prefer: an hourly rate, a fixed fee or a \mixed fee," which is a time-capped fixed fee plus an hourly rate for...
Persistent link: https://www.econbiz.de/10010496901
We investigate the dimensions through which R&D spillovers are propagated across firms via cooperation through Research Joint Ventures (RJVs). We build on the framework developed by Bloom et al. (2013) which considers the opposing effects of technology spillovers and product market rivalry, and...
Persistent link: https://www.econbiz.de/10012258922
A simulation study designed to evaluate the pseudo-R2 proposed by Spiess and Keller (1999) suggests that this measure represents the goodness-of-fit not only of the systematic part, but also of the assumed correlation structure in binary panel probit models.
Persistent link: https://www.econbiz.de/10011433609