Microeconomics Class Introduction Post 3/1/2023

Hello Class. I am retired and taking courses in an attempt to engage my mind in something challenging. This course already seems very challenging. At 74 I have no career aspirations, but in the past, I was an environmental engineer/scientist working in a laboratory that collected air pollution data for the Commonwealth of Massachusetts.

I do own an antiques business and have been selling things on eBay since 1997. From what little learned so far, my challenge is dealing with opportunity costs, that is, what I have to give up in order to operate my business. I may want to walk in the woods, go to the pool, watch TV, or play Skyrim on the computer. These are my personal costs, what I give up, if I want to sell things. If I give up one of these relaxing activities to list one item on eBay, is this a marginal change in my activities? And what incentives to I have that make we want to give up that relaxing activity? The main incentive is to make money, true. But another is to get rid of that thing I am selling. I bought it years ago and it is still taking up space in my small retirement home that was nearly destroyed by hurricane Ian. I look forward to answering my own questions in this course.

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