Paper on the Effect of TV Convergence Technologies Accepted at CIST 2015

Our paper on the effect of Time-Shift TV (TSTV) on TV consumption has been accepted for presentation at the 2015 Conference on Information Systems and Technology. This paper uses data from a randomized experiment to show that offering attractive TV channels to consumers increases TV viewership only if these channels can be watched in time-shift. We also show that in this case TV substitutes some Internet consumption. This provides some evidence  that TV can fight against Internet video streaming when it emulates the later and, for example, offers more flexibility than linear TV.

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Paper on Role of Social Networks on Labor Market Outcomes Conditionally Accepted at ICIS 2015

Our paper showing that friends affect where one works has been conditionally accepted for presentation at the 2015 International Conference on Information Systems. This paper uses millions of call detailed records from a major cell-phone provider to infer social proximity and shows that friends who live close by are more likely to also work close by or even in the same company relative to people that just live close by. A number of robustness checks are used to alleviate endogeneity concerns, such as using distance between workplace and home to mediate the above mentioned relationship.

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Paper on Spillovers Effects from Wiring Schools With Broadband Accepted at Management Science

Our paper showing that wiring schools with broadband has a significant impact of household Internet penetration has been accepted for publication at Management Science. This paper shows that children play a crucial role in activating spillovers from school to home in Internet usage. We provide a theoretical model for how these spillovers may occur and using two sets of instrumental variables we identify them as well as the spillovers from neighboring households.

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Paper on the Effect of TV Content on Piracy to Open NBER Summer Institute – Economics of IT and Digitization Workshop

Our paper on the effect of television content on pirates online activities will open the 2015 NBER Summer Institute Workshop on Economics of IT and Digitization. In this paper we show heterogeneous effects at the individual level in terms of how users substitute between TV content and video consumption over the Internet. We use results from a randomized field experiment to show that heavy Internet users shift their pirating activities to different content once offered new attractive TV content (movies and shows) for free. We also show that once these free offers end they go back to pirating such content. A draft of this paper will be available soon.

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SCECR 2013

Paper on Welfare Effects of Recommender Systems to Open SCECR 2015

Our paper on the welfare impact of recommender systems will be presented in the first session of 11th Symposium on Statistical Challenges in Electronic Commerce Research. This paper shows that recommender systems designed by firms to maximize profits may hurt consumers. We also provide empirical measurements of such effect using results from a randomized experiment in video on demand. A draft of this paper will be available soon.

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Ryan Turner successfully defends his PhD Thesis

Ryan Turner defended his PhD thesis on ICT and Peer Effects on Academic Performance in a University Setting: Evidence from Portugal and graduated from the Department of Engineering and Public Policy.

Paper on pro-active churn management featured at ZEW

Our paper on the value of pro-active churn management has been accepted for presentation at the 13th ZEW Conference on the Economics of Information and Communication Technologies. In this paper, using results from a large-scale randomized experiment run at a major European telecommunications service provider, we show that pro-active churn can increase consumer life-time value in 6%. This statistic increases to 7% when social network data are taken into account.

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Filipa Reis successfully defends her 2nd PhD Paper

Filipa Reis defended her research paper on patterns of substitution between TV and Internet consumption. Internet users substitute Internet for TV when new quality channels are given for free.

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Fields Institute

Pedro Ferreira speaks at Fields Institute

Pedro will give a talk on Large-scale Randomized Experiments at the Workshop on Big Data for Social Policy as part of the Thematic Program on Statistical Inference, Learning, and Models for Big Data.

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Rodrigo Belo

Rodrigo Belo to join Rotterdam School of Management

Rodrigo Belo, currently a post-doctoral fellow at Carnegie Mellon University and at Catolica-Lisbon will be joining the Rotterdam School of Management (RSM) of Erasmus University as an Assistant Professor starting this fall.

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