Week 5 Discussion — Raise the Fare? Who Responds, and Who Pays — Traditional alternative (no AI)

Instructors: publish this instead of the adaptive version if you prefer, and unpublish or delete the adaptive one.

Hook

A city transit agency is short of money and is weighing a fare increase, while a music streaming service is weighing a price rise of its own. This week you learned that whether a higher price brings in more revenue depends on how strongly buyers respond, so you can now argue about a price decision with a number in hand and a value judgment kept separate.

Your discussion question — choose Option A or Option B; they carry the same weight and the same rubric, and you say which you picked.

Option A: A city's transit agency wants more fare revenue and is considering a bus fare increase. One view holds that riders who depend on the bus have few substitutes in the short run, so demand is inelastic and a fare increase would raise revenue with little loss of riders. Another view holds that riders adjust over time, by carpooling, biking, or moving, so demand grows more elastic and the increase could lower revenue and push riders away. Which view do you find more convincing, and why? Test your reasoning on the course's illustrative elasticity schedule, where a price rise from 2 to 4 dollars raises total revenue from 320 to 480 dollars while a rise from 6 to 8 dollars lowers it from 480 to 320. Then say whether the agency should raise the fare, labeling which parts of your answer are positive claims and which are normative judgments.

Option B: Choose a good or service whose price you have watched rise, such as a streaming plan, a parking permit, concert tickets, or a favorite lunch spot. Is your demand for it, and your community's, more likely elastic or inelastic, and which determinant of price elasticity (close substitutes, luxury or necessity, share of the budget, how narrowly the market is defined, or time to adjust) decides it? Then say whether the seller should raise the price again, using the total-revenue test for the positive part and labeling your normative judgment, and say what evidence would change your mind.

There is no single right answer. Reasonable people weigh how quickly buyers adjust, and who should carry a price change, in different ways. Pick the one you actually care about, and tell us your reasoning.

Expectations

Activity format: one initial post followed by two substantive peer replies. Plan on about 45 minutes across the two deadlines; your instructor sets both due dates in Canvas.

Your initial post — by the first due date (early in the module week):

• Say which option you chose.
• For Option A, say which view you find more convincing and test it on the course's elasticity schedule (revenue rising from 320 to 480 dollars on the inelastic segment from 2 to 4 dollars, and falling from 480 to 320 on the elastic segment from 6 to 8); for Option B, name the good, say whether demand is likely elastic or inelastic, and name the determinant that decides it, in one clear sentence.
• Give the strongest version of the view you disagree with in one or two sentences, and say why you still hold your position or what part of the other view you accept.
• Use at least two of this week's terms (price elasticity of demand, midpoint formula, elastic demand, inelastic demand, unit-elastic demand, total revenue, total-revenue test, income elasticity of demand, cross-price elasticity of demand, determinants of price elasticity) correctly.
• Label at least one of your claims as positive (what buyers and revenue would do) and at least one as normative (what the agency or seller ought to do).
• Length: roughly 150–250 words if written. You may instead record your post as audio or video (about two minutes) and attach a transcript; both forms are scored by the same rubric.

Your replies — by the second due date (the end of the module week):

• Reply substantively to at least two classmates.
• A substantive reply does more than agree: ask whether a post swapped elastic and inelastic, point out a slope used where an elasticity belongs, ask how the answer changes when buyers have more time to adjust, or argue the other side at its strongest. "Nice point!" on its own does not count.

What a strong post looks like:

I chose Option A. The positive part: on the course's schedule, raising the price from 2 to 4 dollars, where demand is inelastic, raised revenue from 320 to 480 dollars, but raising it from 6 to 8, where demand is elastic, cut revenue from 480 to 320. So the agency's result depends on where riders sit and how much time they have to adjust. The normative part: I think the agency should raise the fare only a little and watch ridership, because riders who depend on the bus carry the cost. The strongest objection is that the agency needs revenue now, and riders adjust slowly. I accept part of that.

Notice how it ties revenue to elasticity, labels the positive and the normative parts, and gives the other side its strongest form. Someone who argued against any fare increase as carefully would meet the same bar.

Participation rubric

This discussion is worth 10 points. The three criteria below look at your initial post and your peer replies.

Post early if you can — the best threads happen when people have time to reply before the second due date.

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