5) Airlines now commonly charge passengers a fee to check a bag (to be placed in the hold). a. Using an appropriate model or models, illustrate how this change in the cost of air travel is likely to affect the demand for tourism versus the demand for business meeting travel. b. How might the trend of debundling ancillary charges (like baggage fees for example) from base airfares affect how competition authorities view activities such as joint ventures or airport charges to airlines