; (B) administer oaths or affirmations; or (C) compel the attendance of witnesses or the production of documentary and other evidence. (4) Actions by the Commission In any case in which an action is instituted by or on behalf of the Commission for violation of this Act, no State may, during the pendency of that action, institute an action under paragraph (1) against any defendant named in the complaint in the action instituted by or on behalf of the Commission for that violation. (5) Venue; service of process (A) Venue Any action brought under paragraph (1) may be brought in any State court of competent jurisdiction. (B) Service of process In an action brought under paragraph (1), process may be served wherever the defendant— (i) is an inhabitant; or (ii) may be found. 4. Study of compliance Not later than 2 years after the date of enactment of this Act, the Commission shall submit to each committee of Congress with jurisdiction over the Commission a report on— (1) the actions taken by game publishers and digital game distributors to comply with this Act; and (2) other Federal or State laws relating to pay-to-win microtransactions and loot boxes. 5. Study of the effect of pay-to-win microtransactions and loot boxes (a) In general Not later than 2 years after the date of enactment of this Act, the Commission shall submit to each committee of Congress with jurisdiction over the Commission a report on the use of add-on content, including pay-to-win microtransactions, loot boxes, and other kinds of add-on transactions in the design of interactive digital entertainment products for audiences of all ages. (b) Content of report The report required under subsection (a) shall— (1) analyze the use of pay-to-win microtransaction and loot box design practices in specific interactive digital entertainment products; (2) analyze the psychological effects of pay-to-win microtransactions and loot boxes on users