If producers have more information than consumers about goods’ attributes, then they may use non-price (rather than price) adjustment mechanisms and, consequently, the market may reach a new equilibrium even if prices don't change. We study a situation where producers adjust the quantity per...

Using data from three sources (a laboratory experiment, a field study, and a large US supermarket chain), we document a surprising asymmetric behavior of 9-ending prices: they are more rigid upward, but not downward, in comparison to non 9-ending prices. The data from the lab experiment and the...

If producers have more information than consumers about goods’ attributes, then they may use non-price (rather than price) adjustment mechanisms and, consequently, the market may reach a new equilibrium even if prices don't change. We study a situation where producers adjust the quantity per...

We study Israel’s “price rounding regulation” of January 1, 2014, which outlawed non-0-ending prices, forcing retailers to round 9-ending prices, which in many stores comprised 60%+ of all prices. The regulation’s goals were to eliminate (1) the rounding tax—the extra amount consumers...

We report the results of surveys we conducted in the US and Israel in 2020, a time when many prices increased following the spread of the COVID-19 pandemic. To assess respondents’ fairness perceptions of price increases, we focus on goods whose prices have increased during the pandemic,...

We test the predictions of the sticky information model using a survey dataset by comparing the shoppers’ accuracy in recalling the prices of regulated and comparable unregulated products. Regulated product prices change less frequently, vary less across stores and between brands, and are sold...

Prices that end with 9, also known as psychological price points, are common, comprising about 70% of the retail prices. They are also more rigid than other prices. We take advantage of a natural experiment to document an emergence of a new price ending that has the same effects as 9-endings. In...

We study the economic structure of the life of Harry Potter and his co-actors as an economic model that governs the social organization of their economic activities. Our goal is to study and understand the internal consistency of the Potterian economic model and explore the relationships between...

In this paper, we analyze the economic structure of the world of wizards as depicted in the Harry Potter books, which we term Potterian economy, and offer an economist's perspective on it. We look at the economic structure of the life of Harry Potter and his co-actors as an economic model that...

Economic organization of the imaginary worlds depicted in popular literary works may be viewed as a mirror to public opinion on the economic organization of life. If a book becomes a best-seller, it is because the book conveys messages, feelings, and events the readers can relate to. In other...