The Undercover Economist

Anyone passing through Penn Station in New York or Union Station in Washington notices the steep price of espresso at the counter near the exit. It is the same coffee the corner bakery sells cheaply, but during the morning rush, everyone pays without complaining. The popular explanation blames the seller's greed, but economics reveals another reason.

The secret lies in the scarcity of retail space. Thousands of workers pass through that corridor every morning, and there is no physical room to open dozens of competing kiosks. Customers accept paying more for the immediate convenience of not having to take a detour on their way to work.

But the coffee shop owner has no bargaining power over the property owner. When the lease expires, the landlord raises the rent to capture the profit generated by foot traffic. If the shopkeeper refuses, someone else takes the spot immediately. What profits from that morning line is scarce real estate, not coffee.

Nobody walks into a store announcing how much they earn each month. If a salesperson asks about your income at the door, you play it down to get a discount. To get around this barrier, companies use price discrimination, creating situations in which wealthier customers voluntarily choose to pay more.

The classic method is self-selection through small conveniences. Coffee shops sell a regular drink at a modest price and charge almost twice as much for a version with plant-based milk or specialty syrup. These extras cost very little, but the upgraded option attracts people who do not mind paying more for a daily treat.

The same logic governs airlines. Business class costs much more not just because of its wider seats, but because it lets travelers change flights the day before without a penalty. Business travelers pay full fare because their company covers the expense, while families buy discounted tickets with restrictions.

At a supermarket or warehouse club, heavily discounted rice and beans are always at the back of the store. That long walk forces customers through aisles packed with treats and new products from familiar brands, strategically displayed at eye level to encourage impulse purchases.

Retailers know that comparing the price per pound of dozens of laundry detergents takes time and patience. For someone who works hard all week, checking every penny carries a high opportunity cost, since that energy could go toward relaxing with family. Being tired makes choosing the more expensive item easier.

Tiny packaging differences complete the retail trap. Competing products arrive on shelves in slightly different weights, making a quick, straightforward price comparison difficult. If you really want to save, you need to pay extra attention and resist the convenience retailers push.