Search Results - subject:"Null Models"

Null Models of Economic Networks: The Case of the World Trade Web

Fagiolo, Giorgio; Squartini, Tiziano; Garlaschelli, Diego - Laboratory of Economics and Management (LEM), Scuola … - 2011

In all empirical-network studies, the observed properties of economic networks are informative only if compared with a well-defined null model that can quantitatively predict the behavior of such properties in constrained graphs. However, predictions of the available null-model methods can be...

Persistent link: https://www.econbiz.de/10009386032

Restricted random labeling: testing for between-group interaction after controlling for joint population and within-group spatial structure

Kronenfeld, Barry; Leslie, Timothy - In: Journal of Geographical Systems 17 (2015) 1, pp. 1-28

this, we propose a flexible framework for specifying null models that we refer to as restricted random labeling (rRL … framework, two specific null models are proposed for pairwise analysis within populations consisting of three or more …. These examples show that rRL null models are typically stricter than either TS or RL, which often detect “interactions” that …

Persistent link: https://www.econbiz.de/10011155238

Chance explanations in the management sciences

Denrell, Jerker; Fang, Christina; Liu, Chengwei - In: Organization science : a journal of the Institute for … 26 (2015) 3, pp. 923-940

Persistent link: https://www.econbiz.de/10011289845

Cascades in real interbank markets

Karimi, Fariba; Raddant, Matthias - In: Computational economics 47 (2015) 1, pp. 47-66

Persistent link: https://www.econbiz.de/10011443421

GLOBAL TRADE IMBALANCES: A NETWORK APPROACH

DUEÑAS, MARCO; FAGIOLO, GIORGIO - In: Advances in Complex Systems (ACS) 17 (2014) 03, pp. 1450014-1

In this paper, we study trade imbalances between world countries in the period 1960–2011 using a complex-network approach. We show that trade imbalances in absolute value are characterized by a hierarchical arrangement wherein a few developed economies display high clustering and carry an...

Persistent link: https://www.econbiz.de/10011010845

Cascades in real interbank markets

Karimi, Fariba; Raddant, Matthias - Institut für Weltwirtschaft (IfW) - 2013

We analyze cascades of defaults in an interbank loan market. The novel feature of this study is that the network structure and the size distribution of banks are derived from empirical data. We find that the ability of a defaulted institution to start a cascade depends on an interplay of shock...

Persistent link: https://www.econbiz.de/10010886963

Null models of economic networks: the case of the world trade web

Fagiolo, Giorgio; Squartini, Tiziano; Garlaschelli, Diego - In: Journal of Economic Interaction and Coordination 8 (2013) 1, pp. 75-107

Persistent link: https://www.econbiz.de/10010848368

Cascades in real interbank markets

Karimi, Fariba; Raddant, Matthias - 2013

Persistent link: https://www.econbiz.de/10010128816

Null models of economic networks : the case of the world trade web

Fagiolo, Giorgio; Squartini, Tiziano; Garlaschelli, Diego - In: Journal of economic interaction and coordination : JEIC 8 (2013) 1, pp. 75-107

Persistent link: https://www.econbiz.de/10009730904