Documents disponibles écrits par cet auteur

Effect of information feedback on bidder behavior in continuous combinatorial auctions / Gediminas Adomavicius in Management science, Vol. 58 N° 4 (Avril 2012) 

Public ISBD [article]  in Management science > Vol. 58 N° 4 (Avril 2012) . - pp. 811-830 Titre : Effect of information feedback on bidder behavior in continuous combinatorial auctions Type de document : texte imprimé Auteurs : Gediminas Adomavicius, Auteur ; Shawn P. Clark, Auteur ; Alok Gupta, Auteur Année de publication : 2012 Article en page(s) : pp. 811-830 Note générale : Management Langues : Anglais (eng) Mots-clés : Auctions  Combinatorial  auctions  Information  feedback  Bidder  behavior  Experimental  economics Résumé : Combinatorial auctions—in which bidders can bid on combinations of goods—can increase the economic efficiency of a trade when goods have complementarities. Recent theoretical developments have lessened the computational complexity of these auctions, but the issue of cognitive complexity remains an unexplored barrier for the online marketplace. This study uses a data-driven approach to explore how bidders react to the complexity in such auctions using three experimental feedback treatments. Using cluster analyses of the bids and the clicks generated by bidders, we find three stable bidder strategies across the three treatments. Further, these strategies are robust for separate experiments using a different setup. We also benchmark the continuous auctions against an iterative form of combinatorial auction—the combinatorial clock auction. The enumeration of the bidding strategies across different types of feedback, along with the analysis of their economic implications, is offered to help practitioners design better combinatorial auction environments. DEWEY : 658 ISSN : 0025-1909 En ligne : http://mansci.journal.informs.org/content/58/4/811.abstract [article] Effect of information feedback on bidder behavior in continuous combinatorial auctions [texte imprimé] / Gediminas Adomavicius, Auteur ; Shawn P. Clark, Auteur ; Alok Gupta, Auteur . - 2012 . - pp. 811-830. Management Langues : Anglais (eng) in Management science > Vol. 58 N° 4 (Avril 2012) . - pp. 811-830 Mots-clés : Auctions  Combinatorial  auctions  Information  feedback  Bidder  behavior  Experimental  economics Résumé : Combinatorial auctions—in which bidders can bid on combinations of goods—can increase the economic efficiency of a trade when goods have complementarities. Recent theoretical developments have lessened the computational complexity of these auctions, but the issue of cognitive complexity remains an unexplored barrier for the online marketplace. This study uses a data-driven approach to explore how bidders react to the complexity in such auctions using three experimental feedback treatments. Using cluster analyses of the bids and the clicks generated by bidders, we find three stable bidder strategies across the three treatments. Further, these strategies are robust for separate experiments using a different setup. We also benchmark the continuous auctions against an iterative form of combinatorial auction—the combinatorial clock auction. The enumeration of the bidding strategies across different types of feedback, along with the analysis of their economic implications, is offered to help practitioners design better combinatorial auction environments. DEWEY : 658 ISSN : 0025-1909 En ligne : http://mansci.journal.informs.org/content/58/4/811.abstract

Trading higher software piracy for higher profits / Ram D. Gopal in Management science, Vol. 56 N° 11 (Novembre 2010) 

Public ISBD [article]  in Management science > Vol. 56 N° 11 (Novembre 2010) . - pp. 1946-1962 Titre : Trading higher software piracy for higher profits : The case of phantom piracy Type de document : texte imprimé Auteurs : Ram D. Gopal, Auteur ; Alok Gupta, Auteur Année de publication : 2011 Article en page(s) : pp. 1946-1962 Note générale : Management Langues : Anglais (eng) Mots-clés : Software  piracy  Bundling  Copyright  Phantom  piracy Index. décimale : 658 Organisation des entreprises. Techniques du commerce Résumé : Faced with the sustained problem of piracy that costs nearly $40 billion in annual revenue losses, the software industry has adopted a number of technical, legal, and economic strategies to curb piracy and stem the resulting losses. Our work complements and contributes to the existing literature by exploring the possible effect of another economic lever—product bundling—on the relationship governing piracy and seller profits. The traditional economic rationale of demand pooling from bundling that enables sellers to extract higher surplus and its particular attractiveness for information goods with negligible marginal and bundling costs carry over to our analysis. However, the presence of piracy injects several new facets to our analysis. Bundling creates a shared level of piracy of disparate products, and under certain conditions to the detriment of one of the products. We argue that by construction of the copyright laws, the act of bundling itself can have a deterrence effect. This deterrence effect, along with shared piracy of products and demand pooling are ingredients that together dictate the overall piracy, pricing, profit, and welfare outcomes. Our analysis reveals several interesting insights. Bundling can be profitable even when the very act of bundling increases the piracy level of one of the products in the bundle. Termed phantom piracy, this represents a situation where sellers trade off higher piracy for one product in favor of lower piracy for the other product while deriving overall higher profits. Extensive simulation analysis shows that the region of phantom piracy is vastly expanded when additional products are introduced to the bundle. Conversely, under certain conditions, a profit maximizing seller opts not to bundle even when bundling can serve to lower the overall level of piracy. Price discounts that are typically offered by bundling are sharply deepened when piracy enters the equation. When piracy is a phenomenon to contend with, product bundling always increases consumer surplus even in scenarios where the seller may not realize higher profits. Unlike other forms of price discrimination that are often viewed by consumers with a jaundiced eye as they attempt to extract additional surplus from the consumers, product bundling in the software context can be a win-win scenario for both the buyers and the sellers. DEWEY : 658 ISSN : 0025-1909 En ligne : http://mansci.journal.informs.org/cgi/content/abstract/56/11/1946 [article] Trading higher software piracy for higher profits : The case of phantom piracy [texte imprimé] / Ram D. Gopal, Auteur ; Alok Gupta, Auteur . - 2011 . - pp. 1946-1962. Management Langues : Anglais (eng) in Management science > Vol. 56 N° 11 (Novembre 2010) . - pp. 1946-1962 Mots-clés : Software  piracy  Bundling  Copyright  Phantom  piracy Index. décimale : 658 Organisation des entreprises. Techniques du commerce Résumé : Faced with the sustained problem of piracy that costs nearly $40 billion in annual revenue losses, the software industry has adopted a number of technical, legal, and economic strategies to curb piracy and stem the resulting losses. Our work complements and contributes to the existing literature by exploring the possible effect of another economic lever—product bundling—on the relationship governing piracy and seller profits. The traditional economic rationale of demand pooling from bundling that enables sellers to extract higher surplus and its particular attractiveness for information goods with negligible marginal and bundling costs carry over to our analysis. However, the presence of piracy injects several new facets to our analysis. Bundling creates a shared level of piracy of disparate products, and under certain conditions to the detriment of one of the products. We argue that by construction of the copyright laws, the act of bundling itself can have a deterrence effect. This deterrence effect, along with shared piracy of products and demand pooling are ingredients that together dictate the overall piracy, pricing, profit, and welfare outcomes. Our analysis reveals several interesting insights. Bundling can be profitable even when the very act of bundling increases the piracy level of one of the products in the bundle. Termed phantom piracy, this represents a situation where sellers trade off higher piracy for one product in favor of lower piracy for the other product while deriving overall higher profits. Extensive simulation analysis shows that the region of phantom piracy is vastly expanded when additional products are introduced to the bundle. Conversely, under certain conditions, a profit maximizing seller opts not to bundle even when bundling can serve to lower the overall level of piracy. Price discounts that are typically offered by bundling are sharply deepened when piracy enters the equation. When piracy is a phenomenon to contend with, product bundling always increases consumer surplus even in scenarios where the seller may not realize higher profits. Unlike other forms of price discrimination that are often viewed by consumers with a jaundiced eye as they attempt to extract additional surplus from the consumers, product bundling in the software context can be a win-win scenario for both the buyers and the sellers. DEWEY : 658 ISSN : 0025-1909 En ligne : http://mansci.journal.informs.org/cgi/content/abstract/56/11/1946