Jianrong Tian
Interests: Microeconomic Theory, Information Economics, Game Theory, Mechanism Design



Working Papers 

Optimal Interval Division, 2015

Monotone Pragmatics, 2015
 I discuss how the meaning of language can depend on contexts, i.e. pragmatics. Specifically, in a version of Crawford and Sobel (1982) in which the sender and the receiver share common preferences and with finite messages, I derive a monotone comparative statics result on how optimal cut-offs (efficient language) change with prior beliefs (contexts), called monotone pragmatics. Monotone pragmatics explains, for example, why Eskimo languages might have an unusually large number of words for snow. I also discuss implications for mechanism design with limited communication.

Comparative Statics for Cut-offs, R&R for Journal of Economic Theory2015

Informational Herding, Optimal Experimentation, and Contrarianismwith Lones Smith and Peter Sørensen, R&R for Review of Economic Studies, 2014 (pdf

The Law of Accuracy, 2015 (pdf)

Informational Inertia, with Lones Smith, 10/2014 (slides)
We fully characterize a basic property, called informational inertia, of experiments with binary states: the posterior belief, after observing a lumpy posterior event, increases with the prior belief. The lack of informational inertia is the reason that information cascades exist in observational learning. We show that informational inertia illuminates statistical or intrinsic discrimination as well as decision making by committees. 


My Thesis (pdf)











Basically, I'm not interested in doing research and I never have been. I'm interested in understanding, which is quite a different thing. And often to understand something you have to work it out yourself because no one else has done it. 
               — David Blackwell




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Jianrong Tian,
May 25, 2016, 9:23 PM
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Jianrong Tian,
Nov 6, 2015, 5:54 PM
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Jianrong Tian,
Aug 6, 2016, 7:56 AM