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on Network Economics |
| By: | David Guerrero (AME-SPLOTT - Systèmes Productifs, Logistique, Organisation des Transports et Travail - Université Gustave Eiffel); Hidekazu Itoh (School of Business Administration [Kwansei Gakuin] - Kwansei Gakuin University); Guanie Lim (GRIPS - National Graduate Institute for Policy Studies); Petronille Harnay (AME-SPLOTT - Systèmes Productifs, Logistique, Organisation des Transports et Travail - Université Gustave Eiffel); Guillaume Corre (AME-SPLOTT - Systèmes Productifs, Logistique, Organisation des Transports et Travail - Université Gustave Eiffel) |
| Abstract: | The formation of supplier networks at the integrated peripheries is a complex process and results from variegated strategies adopted by firms seeking to adapt to the specificities of each host state. This study aims to provide a preliminary explanation of these patterns by focusing on the case of tier 1 suppliers serving Japanese car manufacturers in Thailand. The empirical data, which captures supply relationships for five different car parts and components, was analyzed using a network visualization method. Our initial findings provide insights into how the supply networks vary across car manufacturers and countries and suggest some of the conditions at the integrated peripheries which can enable suppliers to expand their client portfolio to gain scale. The paper also discusses how the integrated periphery framework intersects with the keiretsu networks of Japanese car manufacturers. |
| Keywords: | automobile industry, Thailand, integrated periphery, supply network, global production networks, spatial division of labor |
| Date: | 2023 |
| URL: | http://d.repec.org/n?u=RePEc:hal:journl:hal-04166229&r=net |
| By: | Jonathan Chiu; Thorsten Koeppl; Hanna Yu; Shengxing Zhang |
| Abstract: | Decentralized finance (DeFi) is composed of a variety of heterogeneous sectors that are interconnected through an input-output network of its tokens. We first use a panel data set to empirically document the evolution of the DeFi network across its different sectors. Instead of looking at the misleading measure of total value locked, we then employ a standard, theoretical production-network model to measure the value added and service outputs of the different DeFi sectors. Finally, based on a calibrated version of our model, we study which factors drive DeFi token prices and predict the equilibrium effects when network interconnectedness increases. |
| Keywords: | Digital currencies and fintech; Payment clearing and settlement systems |
| JEL: | G G2 |
| Date: | 2023–08 |
| URL: | http://d.repec.org/n?u=RePEc:bca:bocawp:23-42&r=net |
| By: | Niharika Kakoty; Surajit Borkotokey; Rajnish Kumar; Abhijit Bora |
| Abstract: | In Network games under cooperative framework, the position value is a link based allocation rule. It is obtained from the Shapley value of an associated cooperative game where the links of the network are considered players. The Shapley value of each of the links is then divided equally among the players who form those links. The inherent assumption is that the value is indifferent to the weights of the players in the network. Depending on how much central a player is in the network, or the ability of making links with other players etc., for example, players can be considered to have weights. Thus, in such situations, dividing the Shapley value equally among the players can be an over-simplistic notion. We propose a generalised version of the position value: the weighted position value that allocates the Shapley shares proportional to the players' weights. These weights of the players are exogenously given. We provide two axiomatic characterizations of our value. Finally, a bidding mechanism is formulated to show that any sub-game perfect equilibrium (SPE) of this mechanism coincides with the weighted position value. |
| Date: | 2023–08 |
| URL: | http://d.repec.org/n?u=RePEc:arx:papers:2308.03494&r=net |
| By: | Claire Chambolle (UMR PSAE - Paris-Saclay Applied Economics - AgroParisTech - Université Paris-Saclay - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement); Clémence Christin (UNICAEN - Université de Caen Normandie - NU - Normandie Université); Hugo Molina (ALISS - Alimentation et sciences sociales - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement) |
| Abstract: | This article presents recent advances in the analysis of buyer-seller networks, with a particular focus on the role of buyer power on exclusion. We first examine simple vertical structures and highlight that either upstream or downstream firms may have incentives to engage in exclusionary practices to either counteract or leverage buyer power. We then review current work attempting to revisit this issue in "interlocking relationships". Based on an ongoing research project, we show that the same exclusion mechanism arises when retail substitution is soft. |
| Keywords: | Vertical relationships, Buyer power, Distribution network, Exclusion |
| Date: | 2023 |
| URL: | http://d.repec.org/n?u=RePEc:hal:journl:hal-03902118&r=net |