This source introduces Modern Monetary Theory (MMT), explaining it as a description of how a sovereign government with its own currency creates and uses money in a modern economy. The key idea is that such a government, unlike households or businesses, does not need to tax or borrow before spending, as it can simply create new money through its central bank. MMT emphasizes that taxation is not primarily for funding government spending but serves as the main tool to control inflation and give value to the currency by creating demand for it to settle tax liabilities. The theory suggests that a government operating under these principles can prioritize achieving full employment, potentially through a job guarantee program, by spending to utilize underused resources without necessarily causing inflation, as long as the spending is carefully managed and balanced by taxation.