Cognitive Biases in Government Procurement – An Experimental Study
-
Omer Dekel
und
Amos Schurr
Abstract
Competitive bidding (CB) is the dominant governmental contracting mechanism by which hundreds of billions of dollars are allocated annually. We claim that when bid evaluators assess the qualitative components of competing bids while being exposed to the bid prices, a systematic bias occurs that gives an unjust advantage to the lower bidder. We term this the Lower-Bid Bias. It is then shown that this bias can be neutralized by splitting the evaluation process into two stages, whereby bid price is revealed only after the evaluation process has culminated (two-stage CB). This is demonstrated through the findings of a survey and three controlled experiments, the first to be conducted with procurement officials. We also explain why this bias is undesirable and suggest a mandatory rule, requiring two-stage CB for any competitive public procurement based on evaluation criteria other than price. Further applications of the experiments’ findings are also discussed.
Appendices
Appendix A: Experiment 2a form
The municipality of Ramat-Gan conducted a Request for Proposals (RFP) for the transportation of the city’s schoolchildren during the 2011–2012 school year. A weight of 60% was given to the bid price and 40% was given to quality criteria. Two bids were submitted.
[1st version: The bid prices were submitted in separate sealed envelopes, to be opened after examination of the other parts of the bids (two-stage sealed bidding).]
[2nd version: “The Carrier Ltd.” submitted the lowest bid, at $800,000, and received the full 600 points (out of 1,000) for the price criterion. The other bid, submitted by “The Transporter Ltd.,” for $875,000, scored only 550 points for the price criterion.]
| Criterion9 | Max. points | “The Carrier” | Points | “The Transporter” | Points |
| [2nd version only: Price] | 600 | $800,000 | 600 | $875,000 | 550 |
| Years of operation | 60 | 8 years | 12 years | ||
| Bus model | 30 | Mercedes “VIP” 2011 | Mercedes “Dolphin” 2010 | ||
| Recommendations | 70 | 2 good, 1 moderate | 5 good | ||
| No. of buses owned by the bidder | 60 | 12 buses | 20 buses | ||
| Average experience of the drivers | 70 | 12 years | 20 years | ||
| Training hours per driver | 30 | 35 hours | 20 hours | ||
| ISO certification | 50 | Not certified, but in the final stages of the certification process | Has certification | ||
| Distance from R.G. | 30 | Bnei-Brak (5 km) | Ra’anana (15 km) | ||
| Total | 1,000 |
Experiment 2a results: the mean scores for the bids’ components at each stage
| Criterion | Max. points | “The Carrier” | Average points “The Carrier” | “The Trans.” | Average points “The Trans.” | ||
| 2-stage CB | 1-stage CB | 2-stage CB | 1-stage CB | ||||
| 2nd version only: Price | 600 | $800,000 | – | 600 | $875,000 | – | 550 |
| Years of operation | 60 | 8 years | 43.33(12.31) | 49.72(8.53) | 12 years | 55.41(9.81) | 58.47(4.28) |
| Bus model | 30 | Mercedes “VIP” 2011 | 28.56(4.07) | 29.31(2.44) | Mercedes “Dolphin” 2010 | 24.39(5.12) | 25.72(4.31) |
| Recommendations | 70 | 2 good, 1 moderate | 37.64(12.15) | 44.58(11.29) | 5 good | 67.03(6.00) | 66.81(7.85) |
| No. of buses owned by the bidder | 60 | 12 buses | 36.56(10.90) | 39.28(9.24) | 20 buses | 54.25(8.00) | 56.25(9.88) |
| Average experience of the drivers | 70 | 12 years | 49.58(12.56) | 56.94(12.21) | 20 years | 67.03(6.12) | 68.19(5.09) |
| Training hours per driver | 30 | 35 hours | 28.50(3.28) | 28.42(3.29) | 20 hours | 20.42(5.53) | 21.81(3.72) |
| ISO certification | 50 | Not certified, but in the final stages of the certification process | 21.94(18.02) | 20.69(19.71) | Has certification | 49.72(1.67) | 46.66(10.95) |
| Distance from R.G. | 30 | Bnei-Brak (5 km) | 27.50(3.68) | 28.75(3.85) | Ra’anana (15 km) | 19.61(6.48) | 23.17(7.76) |
| Total (quality) | 400 | 273.61(43.00) | 297.42(36.08) | 357.86(30.04) | 367.08(22.32) | ||
| Total | 1,000 | 873.61 | 897.42 | 907.86 | 917.08 | ||
Appendix B: Experiment 2b form
The preface is exactly the same as in Appendix A.
| Criterion | Max. points | “The Carrier” | Points | “The Trans.” | Points |
| [2nd version only: Price] | 600 | $800,000 | 600 | $875,000 | 550 |
| Years of operation | 75 | 8 years | 12 years | ||
| Recommendations | 80 | 2 good, 1 moderate | 5 good | ||
| No. of buses owned by the bidder | 70 | 12 buses | 20 buses | ||
| Average experience of the drivers | 75 | 12 years | 20 years | ||
| Distance from R.G. | 100 | Bnei-Brak (5 km) | Ra’anana (15 km) | ||
| Total | 1,000 |
Experiment 2b results: the mean scores for the bids’ components at each stage
| Criterion10 | Max. points | “The Carrier” | Average points “The Carrier” | “The Trans.” | Average points “The Trans.” | ||
| 2-stage CB | 1-stage CB | 2-stage CB | 1-stage CB | ||||
| 2nd version only: Price | 600 | $800,000 | – | 600 | $875,000 | – | 550 |
| Recommendations | 80 | 2 good, 1 moderate | 42.96(8.83) | 47.65(11.86) | 5 good | 78.79(3.18) | 78.97(5.57) |
| No. of buses owned by the bidder | 70 | 12 buses | 44.41(11.63) | 47.71(10.33) | 20 buses | 66.88(8.06) | 69.13(2.70) |
| Average experience of the drivers | 75 | 12 years | 49.95(13.78) | 53.73(14.59) | 21 years | 72.59(5.77) | 72.97(5.09) |
| Distance from R.G. | 100 | Bnei-Brak (5 km) | 91.72(12.48) | 90.86(22.83) | Ra’anana (15 km) | 79.31(16.73) | 76.38(21.99) |
| Years of operation | 75 | 8 years | 56.59(9.68) | 55.57(9.68) | 12 years | 73.34(3.30) | 73.93(2.45) |
| Total (quality) | 400 | 283.57(34.41) | 295.52(47.62) | 370.93(21.99) | 371.38(25.26) | ||
| Total | 1,000 | 883.57 | 895.52 | 920.93 | 921.38 | ||
Acknowledgments
We would like to thank for helpful comments to Judith Avrahami, Constantine Boussalis, Yoav Dotan, Yuval Feldman, Einav Hart, Yaakov Kareev, Barak Medina, Ma’ayan Menashe, Simone Moran, Ariel Porat, Ilana Ritov, Boaz Shnoor, Doron Teichman, Sarit Yakuti, and Eyal Zamir, and to the participants of the session on Public Goods at the 2013 CELS at Penn University.
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- 1
To illustrate, according to the Federal Procurement Data System, in 2012 alone, the U.S. federal government procured approximately $536 billion worth of goods, services, and infrastructure. Of this, $334.5 billion was expended through competitive procedures (Federal Procurement Data System – Next Generation (last updated December 2013), https://www.fpds.gov/Reports/manage/jsp/myReportsController.jsp). Millions of additional competitive procedures, worth billions of dollars, are conducted each year by administrative agencies and state and local governments.
- 2
For the regulation of the U.S. federal government acquisition system, see the Federal Acquisition Regulation (FAR) (48 C.F.R. § 1 (2003)). For the European Community public procurement regulations, see Directive 2004/18/EC of the European Parliament and of the Council of 31 March 2004 on the coordination of procedures for the award of public works contracts, public supply contracts and public service contracts, 2004 O.J. (L 134) 114-240. For the regulation of public procurement by the World Trade Organization (WTO), see the Agreement on Government Procurement (April 15, 1994), available athttp://www.wto.org/english/docs_e/legal_e/gpr-94_01_e.htm. Similar regulations exist in the State of Israel, where the experiments used for the current research were conducted. See the Public Tenders Act, 1992 (Israel).
- 3
TRW Environmental Safety Systems, Inc. v. United States, 18 Cl. Ct. 33, 43 (1989) Glenn Def. Marine Asia, PTE Ltd. v. United States, 720 F.3d 901, 907–908 (Fed. Cir. 2013).
- 4
Banknote Corp. of Am. v. United States, 56 Fed. Cl. 377, 386 (2003) (“It is hornbook law that agencies must evaluate proposals and make awards based on the criteria stated in the solicitation.”); 360Training.com, Inc. v. United States, 106 Fed. Cl. 177, 184 (2012). (“… if the agency’s evaluation of proposals significantly differs from the evaluation process disclosed in the solicitation, the agency’s decision can be found to lack a rational basis.”)
- 5
A distinction must be made between “two-stage competitive bidding” and “two-step sealed bidding” (48 C.F.R. § 14.5 (2003)). In the latter, the submitted bids do not include the proposed price. Only once the bids have been reviewed, are the bidders whose bids were found to be suitable in the first stage asked to submit price proposals. For more details, see Section 5 below.
- 6
Latecoere Int’l, Inc. v. United States Dep’t of the Navy, 19 F.3d 1342, 1359 (11th Cir. Fla. 1994). See also Dubinsky v. United States, 43 Fed. Cl. 243 (Fed. Cl. 1999).
- 7
360 Training.com, Inc. v. United States, 106 Fed. Cl. 177, 184 (2012). See also L-3 Communs. Eotech, Inc. v. United States, 83 Fed. Cl. 643, 654 (2008).
- 8
- 9
The order of presentation of the evaluation criteria was randomly altered between the two rounds of the experiment, in order to prevent participants from remembering their responses in the first round of the experiment.
- 10
The order of presentation of the evaluation criteria was randomly altered between the two rounds of the experiment, in order to prevent participants from remembering the answers they gave in the first round.
©2014 by De Gruyter
Artikel in diesem Heft
- Frontmatter
- Articles
- Litigation with Default Judgments
- Addressing Federal Conflicts: An Empirical Analysis of the Brazilian Supreme Court, 1988–2010
- Cognitive Biases in Government Procurement – An Experimental Study
- Endogenous Detection of Collaborative Crime: The Case of Corruption
- The Power of the Racketeer: An Empirical Approach
Artikel in diesem Heft
- Frontmatter
- Articles
- Litigation with Default Judgments
- Addressing Federal Conflicts: An Empirical Analysis of the Brazilian Supreme Court, 1988–2010
- Cognitive Biases in Government Procurement – An Experimental Study
- Endogenous Detection of Collaborative Crime: The Case of Corruption
- The Power of the Racketeer: An Empirical Approach
