Last updated on 2024-06-13 05:59:36 CEST.
| Package | ERROR | NOTE | OK |
|---|---|---|---|
| antitrust | 1 | 10 | 2 |
Current CRAN status: ERROR: 1, NOTE: 10, OK: 2
Version: 0.99.26
Check: Rd files
Result: NOTE
checkRd: (-1) PS-methods.Rd:61: Lost braces in \itemize; \value handles \item{}{} directly
checkRd: (-1) PS-methods.Rd:62: Lost braces in \itemize; \value handles \item{}{} directly
checkRd: (-1) PS-methods.Rd:63: Lost braces in \itemize; \value handles \item{}{} directly
checkRd: (-1) PS-methods.Rd:64: Lost braces in \itemize; \value handles \item{}{} directly
checkRd: (-1) PS-methods.Rd:65-67: Lost braces in \itemize; \value handles \item{}{} directly
checkRd: (-1) Sim-Functions.Rd:126: Lost braces in \itemize; meant \describe ?
checkRd: (-1) Sim-Functions.Rd:127-129: Lost braces in \itemize; meant \describe ?
checkRd: (-1) Sim-Functions.Rd:135: Lost braces in \itemize; meant \describe ?
checkRd: (-1) Sim-Functions.Rd:136-137: Lost braces in \itemize; meant \describe ?
checkRd: (-1) Sim-Functions.Rd:138-140: Lost braces in \itemize; meant \describe ?
checkRd: (-1) Sim-Functions.Rd:141-143: Lost braces in \itemize; meant \describe ?
Flavors: r-devel-linux-x86_64-debian-clang, r-devel-linux-x86_64-debian-gcc, r-devel-linux-x86_64-fedora-clang, r-devel-linux-x86_64-fedora-gcc, r-devel-windows-x86_64, r-patched-linux-x86_64, r-release-linux-x86_64, r-release-macos-arm64, r-release-macos-x86_64, r-release-windows-x86_64
Version: 0.99.26
Check: package dependencies
Result: NOTE
Packages suggested but not available for checking:
'ggplot2', 'competitiontoolbox'
Flavor: r-devel-linux-x86_64-debian-gcc
Version: 0.99.26
Check: examples
Result: ERROR
Running examples in ‘antitrust-Ex.R’ failed
The error most likely occurred in:
> base::assign(".ptime", proc.time(), pos = "CheckExEnv")
> ### Name: AIDS-Functions
> ### Title: (Nested) AIDS Calibration and Merger Simulation
> ### Aliases: AIDS-Functions aids pcaids pcaids.nests
>
> ### ** Examples
>
> ## Simulate a merger between two single-product firms A and B in a
> ## three-firm market (A, B, C). This example assumes that the merger is between
> ## the firms A and B and that A's own-price elasticity is
> ## known.
> ## Source: Epstein and Rubinfeld (2004), pg 9, Table 2.
>
>
> prices <- c(2.9,3.4,2.2) ## optional for aids, unnecessary for pcaids
> shares <- c(.2,.3,.5)
>
>
> ## The following are used by aids but not pcaids
> ## only two of the margins are required to calibrate the demand parameters
> margins <- c(0.33, 0.36, 0.44)
>
> ## The following are used by pcaids, but not aids
> knownElast<- -3
> mktElast <- -1
>
>
> ## Define ownership using a vector of firm identities
> ownerPre <- c("A","B","C")
> ownerPost <- c("A","A","C")
>
> ## Alternatively, ownership could be defined using matrices
> #ownerPre=diag(1,length(shares))
> #ownerPost=ownerPre
> #ownerPost[1,2] <- ownerPost[2,1] <- 1
>
>
> ## AIDS: the following assumes both prices and margins are known.
> ## Prices are not needed to estimate price changes
>
>
>
> result.aids <- aids(shares,margins,prices,ownerPre=ownerPre,ownerPost=ownerPost,labels=ownerPre)
>
>
>
> print(result.aids) # return predicted price change
Warning in .local(object, ...) :
Slot 'insideSize' is missing. Calculating CV as a percentage change in (aggregate) income
Warning in .local(object, ...) :
'calcQuantities' yielded all NAs. Using 'calcShares' instead
Warning in .local(object, ...) :
'calcQuantities' yielded all NAs. Using 'calcShares' instead
Merger simulation results under 'AIDS' demand:
HHI Change
1200
Industry Price Change (%)
7.5
Merging Party Price Change (%)
12
Compensating Marginal Cost Reduction (%)
NA
Consumer Harm ($)
7.3
Producer Benefit ($)
0.18
Difference ($)
7.2
> summary(result.aids) # summarize merger simulation
Merger simulation results under 'AIDS' demand:
pricePre pricePost priceDelta sharesPre sharesPost outputDelta
* A 2.9 3.3 14 20 17 -13.2
* B 3.4 3.8 11 30 28 -6.5
C 2.2 2.3 4 50 55 9.1
Notes: '*' indicates merging parties' products.
Deltas are percent changes.
Output is based on revenues.
>
> elast(result.aids,TRUE) # returns premerger elasticities
A B C
A -3.0303027 0.7575762 1.262627
B 0.5050508 -2.7777773 1.262627
C 0.5050508 0.7575762 -2.272727
> elast(result.aids,FALSE) # returns postmerger elasticities
A B C
A -3.3370108 0.8728868 1.454025
B 0.5402877 -2.8999816 1.349594
C 0.4628976 0.6941436 -2.167141
>
> diversion(result.aids,TRUE) # return premerger diversion ratios
A B C
A -1.0000000 0.375 0.6250000
B 0.2857143 -1.000 0.7142857
C 0.4000000 0.600 -1.0000000
> diversion(result.aids,FALSE) # return postmerger diversion ratios
A B C
A -1.0000000 0.375 0.6250000
B 0.2857143 -1.000 0.7142857
C 0.4000000 0.600 -1.0000000
>
>
> cmcr(result.aids) #calculate compensating marginal cost reduction
Error in loadNamespace(x) : there is no package called ‘MASS’
Calls: cmcr ... loadNamespace -> withRestarts -> withOneRestart -> doWithOneRestart
Execution halted
Flavor: r-devel-linux-x86_64-debian-gcc
Version: 0.99.26
Check: package dependencies
Result: NOTE
Package suggested but not available for checking: ‘competitiontoolbox’
Flavor: r-oldrel-macos-x86_64
Version: 0.99.26
Check: Rd cross-references
Result: NOTE
Package unavailable to check Rd xrefs: ‘competitiontoolbox’
Flavor: r-oldrel-macos-x86_64