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Guide to Combating Corruption & Fraud in Infrastructure Development Projects

  • Detection
    • Complaints
      • General initial interview questions
      • How to Generate Complaints and Reports
      • List of fraud reporting sites for Multilateral Development Banks
    • Red Flags
      • Red Flags Listed by Project Cycle
      • “Visible red flags” of Implementation Fraud
      • Proactive Fraud Detection Tests
    • Due Diligence
      • “Top Five” Due Diligence Background Checks
      • Free and Subscription Internet Sites
      • Local and On-Site Due Diligence Checks
      • Due Diligence Service Providers
  • Proof
    • Proving Common Schemes
      • Corruption Schemes
      • Bid Rigging Schemes
      • Collusive Bidding Schemes
      • Fraud Schemes
      • The Basic Steps of a Complex Fraud and Corruption Investigation
    • Elements of Proof for Sanctionable Offenses
      • Elements of Proof of Corrupt Practices
      • Elements of Proof of Obstructive Practices
      • Elements of Proof of Coercive Practices
      • Elements of Proof of Collusive Practices
      • Elements of Proof of Fraudulent Practices
  • Evidence
    • The Basics of Evidence for Investigators
  • Prevention
    • Anti-fraud Resources
Home » Detection » Interview Questions » Interview Questions: Collusive Bidding by Contractors

Interview Questions: Collusive Bidding by Contractors

Questions that might reveal collusive bidding include:

  • Do you know or suspect, or have you heard, that certain bidders have engaged in collusive bidding?
  • Do certain companies win the majority of contract awards in a particular area or win contracts on a rotating basis ?
  • Do losing bidders appear as sub-contractors to the winning bidder?
  • Are the winning and low bids on certain contracts unreasonably high?
  • Are certain line items in losing bids unreasonably high?
  • Are bids submitted by different companies physically similar, such having as identical formats or common spelling errors?
  • Are there unusual bidding patterns, such as bids an exact percentage apart?
  • Have different bidders on a contract submitted sequential bid securities or securities purchased at the same time at the same bank?
  • Do some losing bids contain what appear to be deliberate errors or appear to be deliberately incomplete?
  • Do the same bidders bid against each other on every job?
  • Do qualified bidders who once bid no longer submit bids?
  • Are there qualified bidders who never submit a bid?
  • Do prices drop when a new bidder enters the competition?
  • Is there correspondence or other indications that contractors engage in pricing agreements, bidder’s conferences or other agreements?
  • Are controls and procedures to prevent collusive bidding in place and enforced?
Category: Interview Questions

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