Availability & Disparity Study

MGT of America will receive testimonies from area contractors, consultants, subcontractors, suppliers, and service providers, including businesses that currently do business or have attempted to do business with the North Texas Tollway Authority or its prime contractors.  Input from area businesses may be used to modify procurement policies and/or the disadvantaged, minority-owned, and woman-owned businesses (D/M/WBE) program.  Representatives from D/M/WBE businesses are strongly encouraged to attend any of the public meetings listed below or contact MGT directly.

MGT of America logo MGT is a management research and consulting firm with more than 25 years of experience conducting availability and disparity studies.

Measure the success of NTTA’s D/M/WBE program and the impact the program may have on winning contracts or subcontracts. The ultimate goal is to provide fair opportunities for all firms interested in doing business with NTTA.

Community Meetings: Dates, Times & Locations

2 p.m. - 4 p.m. March 7, 2019
Dallas/Fort Worth Minority Supplier Development Council
8828 N. Stemmons Frwy, Suite 550 Dallas, TX 75247
Dallas TX 75247
Register at: vendoroutreach@ntta.org
5 - 7 p.m. September 8, 2016 5 - 7 p.m. September 13, 2016
City Council Chambers – City of Lewisville North Texas Tollway Authority – Boardroom
151 West Church St.
Lewisville, TX 75057
5900 W. Plano Parkway
Plano, TX  75093
https://nttadisparitystudy.eventbrite.com https://nttadisparitystudy.eventbrite.com
5 - 7 p.m. September 15, 2016 5 - 7 p.m. September 20, 2016
Dallas/Fort Worth Minority Supplier Development Council, Inc. North Texas Council of Governments - Transportation Council Room
8828 N. Stemmons Freeway, Suite 510
Dallas, TX 75247
616 Six Flags Drive
Arlington, TX 76011
https://nttadisparitystudy.eventbrite.com https://nttadisparitystudy.eventbrite.com


  1. What is an availability and disparity study?
  2. A: Availability and disparity studies are commissioned by an agency to determine if there is disparity between the availability of firms owned by minorities and women in a market area and the utilization of those firms by an agency.

  3. What is the purpose of an availability and disparity study? Why is it necessary?
  4. A: Availability and disparity studies are used to determine whether there is evidence of discrimination in the market where public entities make procurements, as addressed in the 1989 U.S. Supreme Court’s decision in the case of City of Richmond v. J.A. Croson.

  5. What is anecdotal evidence, and why is anecdotal evidence collected as part of the study?
  6. A:  “Anecdotal evidence” is information that business owners provide about their actual experiences doing business, or trying to do business with NTTA, its prime contractors/vendors, and businesses in the private sector.  Anecdotal evidence helps explain and lend credence to statistical findings that will come from the complete availability and disparity study. Businesses in the market area will be randomly selected to participate in in-depth interviews and surveys. All interested businesses are openly invited to participate in public meetings to provide comments about their experiences.

  7. Why is it important that business owners participate in the study?
  8. A: Owners of D/M/WBE and non-D/M/WBE firms who do business currently or want to do business with NTTA are impacted by the policies, procedures, and guidelines established as part of NTTA’s  D/M/WBE program. Participation in this study provides business owners the opportunity to give accounts of their experiences doing business or trying to do business with NTTA or its prime vendors. Input from the business community may direct the findings and recommendations for future policy changes.

  9. What factors are considered in determining whether a disparity exists?
  10. A:  Disparity is calculated in the form of an index. The disparity index is a ratio of the percentage of utilization and the percentage of availability of D/M/WBE firms. If the disparity index is 100, the utilization of D/M/WBEs is equal with the availability of D/M/WBEs in the market area, i.e., there is parity. If the index is less than 80, it indicates that D/M/WBEs are significantly under-utilized by an agency, based on availability of D/M/WBEs in the market area. An index between 80 and 100 – which is close to full participation – indicates under-utilization, though not significant.

  11. Who is conducting the availability and disparity study?
  12. A:  MGT of America, a nationally recognized research and management consulting firm, is conducting the study on behalf of NTTA.

  13. What will  do with the findings of this study?
  14. A:   NTTA will review the recommendations provided by MGT to determine what modifications, if any, are needed to its D/M/WBE program.


  1. For questions about NTTA’s D/M/WBE program, please contact Moses Aito at maito@ntta.org.
  2. For questions about MGT’s availability and disparity study or for the fill-in form, please visit disparitystudy@mgtamer.com.