antitrust-package: Antitrust Library

Description Details Disclaimer Getting Started Author(s)


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


Package: antitrust
Type: Package
Version: 0.94
Date: 2014-06-24
License: Unlimited
LazyLoad: yes


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: and

Getting Started

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

  2. If you have data on many/all products in the market consider calibrating a demand system and simulating a merger with either a aids,logit, ces, linear, or loglin demand system.

  3. 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.


Charles Taragin and Michael Sandfort

Maintainer: Charles Taragin

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