Time+Place: Tuesday 03/05/2016 14:30 Room 337-8 Taub Bld.
Title: Welfare Maximization via Posted Prices
Speaker: Michal Feldman - COLLOQUIUM LECTURE http://www.cs.tau.ac.il/~mfeldman/
Affiliation: Blavatnik School of Computer Science, Tel-Aviv University
Host: Nir Ailon


Posted price mechanisms are simple, straightforward, and strategyproof. 
We study two scenarios of combinatorial markets where sequential posted
price mechanisms achieve optimal or nearly optimal welfare. The first 
scenario is matching markets with full information, where optimal 
welfare is obtained. The second is markets with submodular (and XOS) 
valuations with Bayesian information, where half of the optimal welfare 
is obtained. We distinguish between static and dynamic pricing, and 
present various extensions of the above findings. Finally, we mention 
surprising relations between price of anarchy results and posted price 

Based on joint works with Vincent Cohen-Addad, Alon Eden and Amos Fiat 
(2016), with Nick Gravin and Brendan Lucier (2015) and with Paul 
Duetting, Thomas Kesselheim and Brendan Lucier (2016).

Short Bio:
Michal Feldman is an Associate Professor in the Blavatnik School of 
Computer Science at Tel Aviv University and a researcher at Microsoft 
Research (MSR) Herzliya. Her research focuses on the intersection of 
computer science, game theory and microeconomics. She received her Ph.D. 
from the University of California at Berkeley in 2005, and did her 
postdoc at the Hebrew University (2005-07). She was a faculty member in 
the School of Business Administration and the Center for the study of 
rationality at the Hebrew University (2007-13), and a visiting professor 
at Harvard University and Microsoft Research New England (2011-13).  She 
serves on the editorial board of various journals, including JCSS, MOR 
and ACM TEAC. She is the vice chair of ACM SIGEcom, and served as the PC 
chair of ACM EC 2015. She is the recipient of various grants and 
fellowships, including EU ERC (European Research Council), EU Marie 
Curie IOF, Alon, and ISF. She is a member of the Israeli Young Academy 
and an alumna of the Global Young Academy.

Refreshments will be served from 14:15
Lecture starts at 14:30