As self-learning pricing algorithms become popular, there are growing concerns among academics and regulators that algorithms could learn to collude tacitly on non-competitive prices and thereby harm competition. I study popular reinforcement learning algorithms and show that they develop...

Algorithms play an increasingly important role in economic situations. These situations are often strategic, where the artificial intelligence may or may not be cooperative. We study the deter-minants and forms of algorithmic cooperation in the infinitely repeated prisoner’s dilemma. We run a...

Algorithms play an increasingly important role in economic situations. Often these situations are strategic, where the artificial intelligence may or may not be cooperative. We study the determinants and forms of algorithmic cooperation in the infinitely repeated prisoner's dilemma. We run a...

While many companies use algorithms to optimize their pricing, additional human oversight and price interventions are widespread. Human intervention can correct algorithmic flaws and introduce private information into the pricing process, but it may also be based on less sophisticated pricing...

This paper investigates the collusive and competitive effects of algorithmic price recommendations on market outcomes. These recommendations are often non-binding and common in many markets, especially on online platforms. We develop a theoretical framework and derive two algorithms that...

The market for video games is booming, with in-game purchases accounting for a substantial share of developers' revenues. Policymakers and the general public alike are concerned that so-called loot boxes - lotteries that offer random rewards to be used in-game - induce consumers to overspend on...

Framing influences choice. However, little is known about the underlying mechanisms behind framing effects. We study gain-loss framing in binary modified dictator games. Subjects choose the selfish option more often in the loss frame compared to the gain frame. Recording visual fixations with...

Narratives pervade almost any aspect of our life and play a particularly important role in moral and prosocial decision-making. We study how positive (stories in favor of a prosocial action) and negative (stories in favor of a selfish action) narratives influence prosocial behavior. Our main...

Online platforms provide search tools that help consumers to get better-fitting product offers. But this technology makes consumer search behavior also easily traceable and allows for real-time price discrimination. Consumers face a trade-off: Search intensely and receive a better fit at a...

Policymakers have been discussing various potential measures to cushion the impact of skyrocketing gas prices and prevent supply shortages. On 10 October 2022 an expert commission in Germany proposed a plan to keep natural gas affordable while also preventing shortages. The main element of the...