Abuse of weekends is possible as legally required time periods are defined in calendar days so the effective time companies would have for bid preparation can further be decreased by including weekends and national holidays in the submission period.
R024 The winning offer is just below the next lower offer
Presently, we require there to be a single supplier and single tenderer.
In the case of consortia – for example – it's possible for the two fields to contain the same IDs. It's perhaps useful to extend the methodology to cover this case, e.g. one consortium colludes with others.
However, we've also observed cases where they are different, e.g. the buyer awards items to multiple bidders who submitted individually. (I'm not sure that this case is rescuable – there's probably no option except to skip such cases).
R025 The ratio of winning bids to submitted bids for a top tenderer is a low outlier
James: I don't know what to do for multiple winning bids, bids with multiple tenderers, or awards made to multiple suppliers.
Camila: For this cases I would suggest to count each bid and award separetely, for instance. If a bid has 2 tenderers, and both win, each tenderer would have 1 bid and 1 award.
R055 Multiple direct awards above or just below threshold
Yohanna: Should we exclude awards if they have more than 1 supplier?
Camila: I would say that in that case we should exclude since we dont know the exact amount that each supplier received
R003 Short submission period
OCDS 1.2 adds
tender/expressionOfInterestDeadline. How should this field be used, if present?“Short submission period” in An Objective Corruption Risk Index Using Public Procurement Data suggests taking weekends (and holidays) into account:
R024 The winning offer is just below the next lower offer
Presently, we require there to be a single supplier and single tenderer.
In the case of consortia – for example – it's possible for the two fields to contain the same IDs. It's perhaps useful to extend the methodology to cover this case, e.g. one consortium colludes with others.
However, we've also observed cases where they are different, e.g. the buyer awards items to multiple bidders who submitted individually. (I'm not sure that this case is rescuable – there's probably no option except to skip such cases).
R025 The ratio of winning bids to submitted bids for a top tenderer is a low outlier
R055 Multiple direct awards above or just below threshold