GLOBAL - Have you missed the biggest stories in pensions this week? Find out below, as we list the top 10 most popular stories on www.globalpensions.com over the past seven days.

US - The $15.3bn San Francisco Employees' Retirement System is looking for five in-house senior portfolio managers.

US/ASIA - HSBC Global Asset Management has named Deborah Hazell regional head of North America and Bill Maldonado Asia-Pacific chief investment officer in a move to bolster its emerging markets business.

US - The California State Teachers' Retirement System (CalSTRS) plans to bring more assets in house, scrutinise global equity managers and issue or complete at least seven requests for proposals across its portfolio this year.

SWEDEN - Swedish pension buffer fund AP4 is looking for up to three passive global equity managers.

CANADA - The Ontario Municipal Employees Retirement System will increase its contribution rate in 2012 as part of a pre-agreed plan for yearly rate hikes in the three years to 2013.

US - Ohio employees last week escaped a potential increase in contributions when a plan to shift 2% of contributions from employer to employee failed to make it into the state's biennial budget.

US/NETHERLANDS - Real estate investor CB Richard Ellis has acquired ING Clarion Real Estate Securities (CRES) in the first of a two-part, $940m deal that sees ING selling the bulk of its real estate investment management business.

Russell restructures EMEA; Towers Watson lures AonHewitt's Machon; SEC; Robeco; AustralianSuper; Standard Life Investments; Allianz Netherlands Asset Management; IMF

Towers Watson has snagged John Machon from rival Aon Hewitt as the firm's head of business development for the retirement solutions business in Europe, Middle East and Africa.