Ecuador R022, R023, R024, R028, R058 collusion indicators

[Camilamila]

• For Ecuador these indicators will only be calculated for Reverse auctions (procurementMethodDetails='Subasta Inversa Electrónica'). We verified with Sercop and they agreed the indicators can be calculated for this method.
  • Solution: Set (and use) price_comparison_procurement_methods
  • R022 "Great disparity in offer prices"
  • R023 Fixed-multiple bid prices
  • R024 Price close to winning bid
  • R028 Identical bid prices
• All reverse auctions have 1 round but the same bidder can submit multiple bids per round. For the indicators we can consider the last bid.
  • Solution: Don't compare a tenderer's bid to its other bids.
  • R022
  • R023
  • R024 (see comment below)
  • R028 (see comment below)
• Exclude R058, since after 2022 they automatically eliminate bids that are lower than 50% of the reference price.

[jpmckinney]

Ok, so I'll change R058 to "no" in the spreadsheet.

[jpmckinney]

For R028 (Different tenderers submitted bids with the same price.) do we need to only consider the last bid? It seems fine to consider all bids by the same tenderer.

[jpmckinney]

For R024 (Price close to winning bid), I've now fixed a bug, so that we treat the lowest bid by the winner as the winning bid. We don't need to exclude any bids from non-winners, since each is individually compared to the winning bid to determine the second-lowest (and we already don't compare the winner's other bids to itself).

[jpmckinney]

For Ecuador these indicators will only be calculated for Reverse auctions

Although R036 is not calculated for Ecuador, I've made the new configuration (price_comparison_procurement_methods) apply to R036 (in addition to the others).

[jpmckinney]

All reverse auctions have 1 round but the same bidder can submit multiple bids per round. For the indicators we can consider the last bid.

@Camilamila I don't see the problem with considering all bids, not just the last?

[Camilamila]

For R024, if we already don't compare the winner's other bids to itself, as you mention then it wouldn't be a problem. Similar to R028

[jpmckinney]

And similar for R022 and R023 (i.e. as long as we don't compare a tenderer's own bids to each other) ?

[Camilamila]

Yes!