Output-Methods: Output Methods

In antitrust: Tools for Antitrust Practitioners

Output Methods

Description

This section contains three types of methods: calcShares, calcQuantities, and calcRevenues. calcShares computes equilibrium product shares assuming that firms are playing a Nash-Bertrand or Cournot game. ‘revenue’ takes on a value of TRUE or FALSE, where TRUE calculates revenue shares, while FALSE calculates quantity shares.

calcQuantities computes equilibrium product quantities assuming that firms are playing a Nash-Bertrand, 2nd Score Auction, or Cournot game. Setting ‘market’ to TRUE returns total market quantity.

calcRevenues computes equilibrium product revenues assuming that firms are playing a Nash-Bertrand, 2nd Score Auction, or Cournot game. Setting ‘market’ to TRUE returns total market revenue.

Usage

## S4 method for signature 'Cournot'
calcQuantities(object, preMerger = TRUE, market = FALSE, ...)

## S4 method for signature 'Stackelberg'
calcQuantities(object, preMerger = TRUE, market = FALSE, ...)

## S4 method for signature 'Linear'
calcQuantities(object, preMerger = TRUE, market = FALSE)

## S4 method for signature 'Logit'
calcQuantities(object, preMerger = TRUE, market = FALSE)

## S4 method for signature 'LogLin'
calcQuantities(object, preMerger = TRUE, market = FALSE, ...)

## S4 method for signature 'AIDS'
calcQuantities(object, preMerger = TRUE, market = FALSE)

## S4 method for signature 'CES'
calcQuantities(object, preMerger = TRUE, market = FALSE)

## S4 method for signature 'Bertrand'
calcRevenues(object, preMerger = TRUE, market = FALSE)

## S4 method for signature 'Cournot'
calcRevenues(object, preMerger = TRUE, market = FALSE)

## S4 method for signature 'VertBargBertLogit'
calcRevenues(object, preMerger = TRUE, market = FALSE)

## S4 method for signature 'AIDS'
calcQuantities(object, preMerger = TRUE, market = FALSE)

## S4 method for signature 'CES'
calcRevenues(object, preMerger = TRUE, market = FALSE)

## S4 method for signature 'Auction2ndCap'
calcShares(object, preMerger = TRUE, exAnte = TRUE)

## S4 method for signature 'Cournot'
calcShares(object, preMerger = TRUE, revenue = FALSE)

## S4 method for signature 'Linear'
calcShares(object, preMerger = TRUE, revenue = FALSE)

## S4 method for signature 'VertBargBertLogit'
calcQuantities(object, preMerger = TRUE, market = FALSE)

## S4 method for signature 'VertBargBertLogit'
calcShares(object, preMerger = TRUE, revenue = FALSE)

## S4 method for signature 'VertBarg2ndLogit'
calcShares(object, preMerger = TRUE, revenue = FALSE)

## S4 method for signature 'Logit'
calcShares(object, preMerger = TRUE, revenue = FALSE)

## S4 method for signature 'AIDS'
calcShares(object, preMerger = TRUE, revenue = TRUE)

## S4 method for signature 'LogitNests'
calcShares(object, preMerger = TRUE, revenue = FALSE)

## S4 method for signature 'Auction2ndLogit'
calcShares(object, preMerger = TRUE, revenue = FALSE)

## S4 method for signature 'Auction2ndLogitNests'
calcShares(object, preMerger = TRUE, revenue = FALSE)

## S4 method for signature 'CES'
calcShares(object, preMerger = TRUE, revenue = FALSE)

## S4 method for signature 'CESNests'
calcShares(object, preMerger = TRUE, revenue = FALSE)

Arguments

object	An instance of one of the classes listed above.
preMerger	If TRUE, returns pre-merger outcome. If FALSE, returns post-merger outcome. Default is TRUE.
market	If TRUE, reports market-level summary. Otherwise reports product/plant level summary. Default is FALSE.
...	Additional arguments to pass to calcQuantities.
exAnte	If ‘exAnte’ equals TRUE then the ex ante expected result for each firm is produced, while FALSE produces the expected result conditional on each firm winning the auction. Default is FALSE.
revenue	If TRUE, returns revenues. If FALSE, returns quantities. Default is TRUE.

antitrust documentation built on Aug. 24, 2022, 9:05 a.m.