Geneva - Chiefs of several leading international companies launched a call on YouTube Monday, asking for the public to submit ideas on how to combat corruption.

Executives appearing on the video streaming Website - including Alan Boeckmann of the Fluor Corporation, Peter Bakker of the Dutch delivery company TNT and Samuel DiPiazza, CEO of PricewaterhouseCoopers - said over 1 trillion dollars were lost annually to corruption.

They said, in a short clip just over a minute in length, that bribes hindered workers' ability to get jobs and patients' access to basic medical care.

The initiative ahead of Tuesday's International Anti-Corruption Day, an event started by the United Nations' General Assembly in 2003, was launched by the World Economic Forum, which said video answers with anti-corruption ideas would be shown at the upcoming annual conference at Davos next month.

As part of the campaign, the WEF also released its annual corruption survey of companies who voluntary sign up for review and agree to adhere to clean business practices.

The report said that all companies, from several continents, who had joined the survey had implemented anti-corruption programmes, up from 90 percent one year ago, and that more business were screening their partners before starting to work with them.

The WEF said governments needed to give incentives to companies to tackle corruption. (dpa)