The rise of the credit card airport lounge

This episode of The Indicator from Planet Money addresses listener questions on various economic topics. Listeners inquire about the discrepancy between falling oil prices and rising gas prices, the rapid expansion of airport lounges offered through credit card reward programs, and the effectiveness of Canada's carbon tax. The hosts, along with expert guests, provide explanations and analysis for each question, covering factors such as seasonal gas variations, refinery margins, and the complexities of measuring the impact of carbon taxes amidst other policy interventions.