Share buybacks, more extensive use of capital markets and detailed worst-case contingency plans are among the measures that executives at global companies need to consider to cope with the "fragile" macroeconomic environment in 2012, US bank Citigroup said in its annual strategy report on corporate finance.

In a report published yesterday by Citigroup's financial strategy group, the US bank set out the 10 corporate finance priorities executives will need to address in 2012.