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Balanced partitions of trees and applications
(2011)Technical reportWe study the k-BALANCED PARTITIONING problem in which the vertices of a graph are to be partitioned into k sets of size at most dn=ke while minimising the cut-size, which is the number of edges connecting vertices in dierent sets. The problem is well studied for general graphs, for which it cannot be approximated within any nite factor in polynomial time. However, little is known about restricted graph classes. We show that for trees ...Report -
Competition and R&D cooperation with universities and competitors
(2011)KOF Working PapersThis paper analyzes the relationship between competition and R&D cooperation with universities and competitors. Our simple model predicts that more competitors reduce the incentives for horizontal cooperation as it diminishes the gains from “collusion”. Assuming that the value of synergies and spillovers created by cooperation depends on competition intensity reveals two distinct and opposing incentives for cooperation. While synergies ...Working Paper -
Elastizitäten und Substitutionsmöglichkeiten der Elektrizitätsnachfrage
(2011)KOF StudiesDie volkswirtschaftlichen Kosten verschiedener energiewirtschaftlicher Strategien hängen wesentlich von der Reaktion der Nachfrage ab. Vor diesem Hintergrund geht die KOF Studie in einer Literaturübersicht dem Teilaspekt der volkswirtschaftlichen Anpassung über die Auswirkungen der Änderung relativer Preise auf die Elektrizitätsnachfrage nach. Ziel ist es, die empirische Literatur zu den Preiselastizitäten der Nachfrage nach Elektrizität ...Report -
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Mapping mediators: A comparison of third parties and implications for Switzerland
(2011)CSS Mediation ResourcesReport -
Does Export Concentration Cause Volatility?
(2011)KOF Working PapersThis paper investigates the causal influence of export concentration on measures of aggregate volatility. Geographically disadvantaged countries often have a concentrated export structure which makes them more vulnerable to external shocks. Identifying causal effects of export concentration on volatility faces severe problems of endogeneity, however. Based on a gravity approach, we suggest an inequality decomposition method which allows ...Working Paper -
On harmonic Ritz values
(2011)Technical Report / ETH Zurich, Department of Computer ScienceReport -
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