Relating resources expended by a securities research entity to revenue received by a financial services firm including the securities research entity. A computer system may receive account revenue data indicative of revenue received by the financial services firm from a first customer investment account for at least securities trade execution by the financial services firm for the first customer investment account. The computer system may also receive expense data indicative of expenses incurred by the securities research entity on behalf of the first customer investment account. The computer system may determine a market condition-adjusted elasticity for the first customer investment account. The market condition-adjusted elasticity, determined based on at least one market condition for securities, may indicate a relationship between the expenses incurred by the research entity on behalf of the first customer investment account and the revenue received by the financial services firm from the first customer investment account.