2 citations · 4 across the 8 of their papers we have counts for
10 papers
Costlier switching strengthens competition even without advertising
Sander Heinsalu
Consumers only discover at the first seller which product best fits their needs, then check its price online, then decide on buying. Switching sellers is costly. Equilibrium prices…
Infection arbitrage
Sander Heinsalu
Increasing the infection risk early in an epidemic is individually and socially optimal under some parameter values. The reason is that the early patients recover or die before the…
Greater search cost reduces prices
Sander Heinsalu
The optimal price of each firm falls in the search cost of consumers, in the limit to the monopoly price, despite the exit of lower-value consumers in response to costlier search.…
Reversals of signal-posterior monotonicity imply a bias of screening
Sander Heinsalu
This note strengthens the main result of Lagziel and Lehrer (2019) (LL) "A bias in screening" using Chambers Healy (2011) (CH) "Reversals of signal-posterior monotonicity for any b…
When abstinence increases prevalence
Sander Heinsalu
In the pool of people seeking partners, a uniformly greater preference for abstinence increases the prevalence of infection and worsens everyone's welfare. In contrast, prevention…
Price competition with uncertain quality and cost
Sander Heinsalu
Consumers in many markets are uncertain about firms' qualities and costs, so buy based on both the price and the quality inferred from it. Optimal pricing depends on consumer heter…
Herding driven by the desire to differ
Sander Heinsalu
Observational learning often involves congestion: an agent gets lower payoff from an action when more predecessors have taken that action. This preference to act differently from p…
Corrigendum to "Managerial Incentive Problems: A Dynamic Perspective"
Sander Heinsalu
This paper corrects some mathematical errors in Holmström (1999) and clarifies the assumptions that are sufficient for the results of Holmström (1999). The results remain qualitati…
Competitive pricing despite search costs if lower price signals quality
Sander Heinsalu
I show that firms price almost competitively and consumers can infer product quality from prices in markets where firms differ in quality and production cost, and learning prices i…
Good signals gone bad: dynamic signalling with switching efforts
Sander Heinsalu
This paper examines signalling when the sender exerts effort and receives benefits over time. Receivers only observe a noisy public signal about the effort, which has no intrinsic…