requiring that a broker or dealer and persons
employed by a broker or dealer who are involved with
investment banking activities may not, directly or
indirectly, retaliate against or threaten to retaliate against
any securities analyst employed by that broker or dealer
or its affiliates as a result of an adverse, negative, or
otherwise unfavorable research report that may adversely
affect the present or prospective investment banking relationship
of the broker or dealer with the issuer that is
the subject of the research report, except that such rules
may not limit the authority of a broker or dealer to discipline
a securities analyst for causes other than such
research report in accordance with the policies and procedures
of the firm