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Chrysanthos Dellarocas
Boston University
BusinessMarketingComputer scienceReputationKnowledge management
112Publications
38H-index
9,979Citations
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Publications 97
Newest
#1Jesse Chu-ShoreH-Index: 5
#2Jiye BaekH-Index: 2
Last. Chrysanthos DellarocasH-Index: 38
view all 3 authors...
#1Shrabastee Banerjee (BU: Boston University)
#2Chrysanthos Dellarocas (BU: Boston University)H-Index: 38
Last. Georgios Zervas (BU: Boston University)H-Index: 30
view all 3 authors...
We study the question and answer (Q&A) technology of electronic commerce platforms, an increasingly common form of user-generated content that allows consumers to publicly ask product-specific questions and receive responses, either from the platform or from other customers. Using data from a major online retailer, we show that Q&As complement consumer ratings and reviews: unlike reviews, questions are primarily asked pre-purchase, focus on clarification of product attributes rather than discuss...
Source
#1Nachiketa Sahoo (BU: Boston University)H-Index: 8
#2Chrysanthos Dellarocas (BU: Boston University)H-Index: 38
Last. Shuba Srinivasan (BU: Boston University)H-Index: 21
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Although many researchers in Information Systems and Marketing have studied the effect of product reviews on sales, few have looked at their effect on product returns. We hypothesize that, by affecting the quality of purchase decisions, product reviews influence the probability of the eventual return of the purchased products. We elaborate this hypothesis by developing an analytical model that shows how changes in the precision of product quality and fit information affect the return probabiliti...
14 CitationsSource
Social media have great potential to support diverse information sharing, but there is widespread concern that platforms like Twitter do not result in communication between those who hold contradictory viewpoints. Because users can choose whom to follow, prior research suggests that social media users exist in “echo chambers” or become polarized. We seek evidence of this in a complete cross section of hyperlinks posted on Twitter, using previously validated measures of the political slant of new...
5 CitationsSource
Jun 20, 2017 in EC (Economics and Computation)
#1Shrabastee Banerjee (BU: Boston University)
#2Chrysanthos Dellarocas (BU: Boston University)H-Index: 38
Last. Georgios Zervas (BU: Boston University)H-Index: 30
view all 3 authors...
In this paper, we study the question and answer (Q&A) feature of electronic commerce platforms, an increasingly common form of user-generated content (UGC) that allows consumers to publicly ask product-specific questions and receive responses, either from the platform or from other customers. Using data from a major online retailer, we show that Q&As complement reviews and ratings: unlike reviews, Q&As primarily happen pre-purchase, focus on clarification of product attributes (rather than discu...
Source
Question-Answering (QA) communities have emerged as a rich source of information by allowing users to ask questions, contribute responses, and evaluate responses submitted by others. QA platforms encourage the contribution of useful content by establishing a measure of reputation, based on the volume and quality of each user’s contributions. While previous work has verified the positive relationship of reputation with response volume, its relationships of with other important aspects of contribu...
Source
#2Juliana SutantoH-Index: 13
Last. Elia PalmeH-Index: 3
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News aggregators have emerged as an important component of digital content ecosystems, attracting traffic by hosting curated collections of links to third-party content, but also inciting conflict with content producers. Aggregators provide titles and short summaries (snippets) of articles they link to. Content producers claim that their presence deprives them of traffic that would otherwise flow to their sites. In light of this controversy, we conduct a series of field experiments whose objecti...
11 CitationsSource
#1Yanhao Wei (UPenn: University of Pennsylvania)H-Index: 1
#2Pinar Yildirim (UPenn: University of Pennsylvania)H-Index: 5
Last. Chrysanthos Dellarocas (BU: Boston University)H-Index: 38
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Motivated by the growing practice of using social network data in credit scoring, we analyze the impact of using network-based measures on customer score accuracy and on tie formation among customers. We develop a series of models to compare the accuracy of customer scores obtained with and without network data. We also investigate how the accuracy of social network-based scores changes when consumers can strategically construct their social networks to attain higher scores. We find that those w...
24 CitationsSource
#1Yicheng Song (BU: Boston University)H-Index: 6
#2Nachiketa Sahoo (BU: Boston University)H-Index: 8
Last. Chrysanthos Dellarocas (BU: Boston University)H-Index: 38
view all 4 authors...
A digital consumer’s purchase journey, referred to as the path to purchase, is non-linear and heterogeneous. Despite a strong interest in this concept, there are few published approaches to empirically extract consumers’ path to purchase (in terms of a sequence of different types of activities leading to purchase), especially in settings where consumers engage in multiple simultaneous activities in each period. We address this gap by proposing a methodology that identifies consumers’ paths to pu...
1 CitationsSource
#1Jiye BaekH-Index: 2
#2Jesse Chu-ShoreH-Index: 5
Last. Chrysanthos DellarocasH-Index: 38
view all 3 authors...
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