; (2) recommend practices in certain industries that merit antitrust investigation, but may not recommend practices in certain industries that do not merit antitrust investigation or are not anticompetitive; (3) publicly provide recommendations to other Federal agencies about administrative actions that may have anticompetitive effects and the potential harm to consumers if those actions are carried out; (4) publish periodic reports on— (A) market concentration and its impact on the United States, local geographic areas, and different demographic and socioeconomic groups; and (B) the success of merger remedies required by the Department of Justice or the Federal Trade Commission in consent decrees; (5) collect data regarding concentration levels across industries and the impact and degree of antitrust enforcement; and (6) standardize the types and formats of data reported and collected. (f) Subpoena authority (1) In general The Competition Advocate may either require the submission of or accept voluntary submissions of periodic and other reports from any covered company for the purpose of assessing market concentration and its impact on the United States, local geographic areas, and different demographic and socioeconomic groups and on the success of merger enforcement. (2) Written finding Before issuing a subpoena to collect the information described in paragraph (1), the Competition Advocate shall make a written finding that— (A) the data is required to carry out the functions of the Competition Advocate; and (B) the information is not available from a public source or another agency. (3) Mitigation of report burden Before requiring the submission of a report from any company required to make a filing under section 7A of the Clayton Act ( 15 U.S.C. 18a ), the Competition Advocate shall— (A) coordinate with other agencies or authority