They would have to be much more than 20% less. Taxes and living costs are typically far lower than income for the types of jobs that people would consider movin

They would have to be much more than 20% less. Taxes and living costs are typically far lower than income for the types of jobs that people would consider moving for. 20% higher income is 20% more of a larger number than the 20% higher costs, making it more profitable to live in the high cost of living area.