antitrust-package: Tools for Antitrust Practitioners

Description Details Disclaimer Author(s)


A collection of tools for antitrust practitioners, including the ability to calibrate different consumer demand systems and simulate the effects of mergers under different competitive regimes.


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To get Started:

  1. Collect data on product prices, shares, margins and diversions (optional).

  2. Specify how firms interact strategically (e.g. Bertrand, Cournot, Auction)

  3. If you have data on many/all products in the market consider calibrating a demand system and simulating a merger with either a bertrand.alm,cournot, or auction2nd.logit.

  4. If you only have data on the merging parties' products, consider using cmcr.bertrand or cmcr.cournot to uncover the marginal cost reductions needed to offset a post-merger increase.


The views expressed herein are entirely those of the authors and should not be purported to reflect those of the U.S. Department of Justice. The antitrust package has been released into the public domain without warranty of any kind, expressed or implied. Address: Economic Analysis Group, Antitrust Division, U.S. Department of Justice, 450 5th St. NW, Washington DC 20530. E-mail: [email protected] and [email protected]


Charles Taragin and Michael Sandfort

Maintainer: Charles Taragin <[email protected]>

antitrust documentation built on June 10, 2018, 5:04 p.m.