Elast-Methods {antitrust} | R Documentation |
Calculate the own and cross-price elasticity between any two products in the market.
## S4 method for signature 'Cournot' elast(object, preMerger = TRUE, market = FALSE) ## S4 method for signature 'Linear' elast(object, preMerger = TRUE, market = FALSE) ## S4 method for signature 'Logit' elast(object, preMerger = TRUE, market = FALSE) ## S4 method for signature 'LogLin' elast(object, preMerger = TRUE, market = FALSE) ## S4 method for signature 'AIDS' elast(object, preMerger = TRUE, market = FALSE) ## S4 method for signature 'LogitNests' elast(object, preMerger = TRUE, market = FALSE) ## S4 method for signature 'CES' elast(object, preMerger = TRUE, market = FALSE) ## S4 method for signature 'CESNests' elast(object, preMerger = TRUE, market = FALSE) ## S4 method for signature 'VertBargBertLogit' elast(object, preMerger = TRUE, market = FALSE)
object |
An instance of one of the classes listed above. |
preMerger |
If TRUE, calculates pre-merger price elasticities. If FALSE, calculates post-merger price elasticities. Default is TRUE. |
market |
If TRUE, calculates the market (aggregate) elasticity. If FALSE, calculates matrix of own- and cross-price elasticities. Default is FALSE. |
When ‘market’ is FALSE, this method computes the matrix of own and cross-price elasticities. Element i,j of this matrix is the percentage change in the demand for good i from a small change in the price of good j. When ‘market’ is TRUE, this method computes the market (aggregate) elasticities using share-weighted prices.
When ‘preMerger’ is TRUE, elasticities are calculated at pre-merger equilibrium prices and shares, and when ‘preMerger’ is FALSE, they are calculated at post-merger equilibrium prices and shares.
returns a k x k matrix of own- and cross-price elasticities, where k is the number of products in the market.