Business publisher Euromoney Institutional Investor is buying Arete Consulting, a database of retail structured investment products.The final price depends on Arete's audited profits for its financial year to 28 February 2011. Managing director and main shareholder, Robert Benson, used to run the structured products department at HSBC. He'll stay until at least June next year.Arete's proprietary structured retail products database contains information on over 1.3m products covering 33 countries and dating back nearly 20 years. Its customers are mostly investment banks, issuers of structured retail products, regulators and financial indices. "Working with Euromoney will enable us accelerate our geographical coverage and develop new products to deliver a significantly enhanced service to our subscribers," Benson said.