The federal government's threat to slap new export restrictions on east coast gas suppliers ("Malcolm Turnbull intervenes in gas market to tackle surging domestic prices", April 27) is an admission that a free market does not always work. Despite Australia having a massive gas resource, the free market in energy has failed to deliver, in the PM's words, "the gas Australians need at prices they can afford". If the market was working properly a host of entrepreneurs should be competing feverishly for our business and driving prices down. Instead, the profits have been retained by the gas companies and have not trickled down to the consumer in the form of lower prices. It is strange, therefore, that Mr Turnbull and his Treasurer are so confident that the market would perform perfectly if the Senate would only grant massive tax cuts to big business. Like saliva from Pavlov's dog on hearing the dinner bell, the business tax cuts would automatically flow down to the rest of us in the form of new jobs and higher wages. Yeah, right.