Mr BOWEN (McMahon) (14:06): My question is to the Prime Minister. Labor has today proposed using a worldwide gearing ratio for calculating deductions multinational corporations can claim on their Australian tax. The OECD says this type of approach has 'the greatest potential to tackle base erosion and profit shifting'. Prime Minister, will the government work with Labor to ensure that multinationals pay their fair share of tax? Opposition members interjecting— The SPEAKER: There will be silence on my left.