Hans‐theo Normann
Biographic Data
| ID | 1128192 |
|---|---|
| NAME | Hans‐theo Normann |
| GIVEN NAMES | Hans‐theo |
| FAMILY NAME | Normann |
| SIGNATURE | NORMANN H T |
| AFFILIATIONS | Hochschule Düsseldorf University of Applied Sciences |
| VERIFIED | No |
| TOTAL WORKS | 8 |
| TOTAL CITATIONS | 18 |
| WORKS AS AUTHOR | 8 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 2001 |
| LATEST PUBLICATION YEAR | 2025 |
| H-INDEX | 3 |
Cooperation in multiplayer dilemmas
Simultaneous and Sequential Contributions to Step-level Public Goods
In a step-level public-good experiment, we investigate how the order of moves (simultaneous vs. sequential) and the number of step levels (one vs. two) affects public-good provision in a two-player game. We find that the sequential order of moves significantly improves public-good provision and payoffs, even though second movers often punish first movers who give less than half of the threshold contribution. The additional second step level—which…
Excess Capacity and Pricing in Bertrand-Edgeworth Markets
We conduct experiments testing the relationship between excess capacity and pricing in repeated Bertrand-Edgeworth duopolies and triopolies. We systematically vary the experimental markets between low excess capacity (suggesting monopoly) and no capacity constraints (suggesting perfect competition). Controlling for the number of firms, higher production capacity leads to lower prices. However, the decline in prices as industry capacity rises is l…
A within-subject analysis of other-regarding preferences
Mergers, Asymmetries and Collusion
We analyse the impact of mergers in experimental Bertrand-Edgeworth oligopolies. Treatment variables are the number of firms (two, three) and the distribution of industry capacity (symmetric, asymmetric). Consistent with a dynamic collusion model, we find that, even though they are more concentrated, asymmetric markets exhibit lower prices than symmetric markets with the same number of firms. Consistent with the static Nash prediction, duopolies …
The Merger Paradox and Why Aspiration Levels Let it Fail in the Laboratory
We study the merger paradox, a relative of Harsanyi's bargaining paradox, in an experiment. We examine bilateral mergers in experimental Cournot markets with initially three or four firms. Standard Cournot-Nash equilibrium predicts total outputs well. However, merged firms produce significantly more output than their competitors. As a result, mergers are not unprofitable. By analysing control treatments, we provide an explanation for these result…
Conjectural Variations and Evolutionary Stability
Adopting an evolutionary approach, we explain the conjectural variations firms may hold in duopoly. Given conjectures, firms play the market game rationally. Success in the market game determines fitness in the evolutionary game. Based on linear heterogeneous Cournot and Bertrand competition models, we show that the unique conjectures that are evolutionarily stable are consistent in that they anticipate the rival's behavior correctly.
Stackelberg Beats Cournot
We report on an experiment designed to compare Stackelberg and Cournot duopoly markets with quantity competition. We implement both a random matching and a fixed-pairs version for each market. Stackelberg markets yield, regardless of the matching scheme, higher outputs than Cournot markets and, thus, higher efficiency. For Cournot markets, we replicate a pattern known from previous experiments. There is stable equilibrium play under random matchi…
Simultaneous and Sequential Contributions to Step-level Public Goods
In a step-level public-good experiment, we investigate how the order of moves (simultaneous vs. sequential) and the number of step levels (one vs. two) affects public-good provision in a two-player game. We find that the sequential order of moves significantly improves public-good provision and payoffs, even though second movers often punish first movers who give less than half of the threshold contribution. The additional second step level—which…
Stackelberg Beats Cournot
We report on an experiment designed to compare Stackelberg and Cournot duopoly markets with quantity competition. We implement both a random matching and a fixed-pairs version for each market. Stackelberg markets yield, regardless of the matching scheme, higher outputs than Cournot markets and, thus, higher efficiency. For Cournot markets, we replicate a pattern known from previous experiments. There is stable equilibrium play under random matchi…
Mergers, Asymmetries and Collusion
We analyse the impact of mergers in experimental Bertrand-Edgeworth oligopolies. Treatment variables are the number of firms (two, three) and the distribution of industry capacity (symmetric, asymmetric). Consistent with a dynamic collusion model, we find that, even though they are more concentrated, asymmetric markets exhibit lower prices than symmetric markets with the same number of firms. Consistent with the static Nash prediction, duopolies …
The Merger Paradox and Why Aspiration Levels Let it Fail in the Laboratory
We study the merger paradox, a relative of Harsanyi's bargaining paradox, in an experiment. We examine bilateral mergers in experimental Cournot markets with initially three or four firms. Standard Cournot-Nash equilibrium predicts total outputs well. However, merged firms produce significantly more output than their competitors. As a result, mergers are not unprofitable. By analysing control treatments, we provide an explanation for these result…
Stackelberg Beats Cournot
We report on an experiment designed to compare Stackelberg and Cournot duopoly markets with quantity competition. We implement both a random matching and a fixed-pairs version for each market. Stackelberg markets yield, regardless of the matching scheme, higher outputs than Cournot markets and, thus, higher efficiency. For Cournot markets, we replicate a pattern known from previous experiments. There is stable equilibrium play under random matchi…
Conjectural Variations and Evolutionary Stability
Adopting an evolutionary approach, we explain the conjectural variations firms may hold in duopoly. Given conjectures, firms play the market game rationally. Success in the market game determines fitness in the evolutionary game. Based on linear heterogeneous Cournot and Bertrand competition models, we show that the unique conjectures that are evolutionarily stable are consistent in that they anticipate the rival's behavior correctly.
The Merger Paradox and Why Aspiration Levels Let it Fail in the Laboratory
We study the merger paradox, a relative of Harsanyi's bargaining paradox, in an experiment. We examine bilateral mergers in experimental Cournot markets with initially three or four firms. Standard Cournot-Nash equilibrium predicts total outputs well. However, merged firms produce significantly more output than their competitors. As a result, mergers are not unprofitable. By analysing control treatments, we provide an explanation for these result…
Mergers, Asymmetries and Collusion
We analyse the impact of mergers in experimental Bertrand-Edgeworth oligopolies. Treatment variables are the number of firms (two, three) and the distribution of industry capacity (symmetric, asymmetric). Consistent with a dynamic collusion model, we find that, even though they are more concentrated, asymmetric markets exhibit lower prices than symmetric markets with the same number of firms. Consistent with the static Nash prediction, duopolies …
A within-subject analysis of other-regarding preferences
Excess Capacity and Pricing in Bertrand-Edgeworth Markets
We conduct experiments testing the relationship between excess capacity and pricing in repeated Bertrand-Edgeworth duopolies and triopolies. We systematically vary the experimental markets between low excess capacity (suggesting monopoly) and no capacity constraints (suggesting perfect competition). Controlling for the number of firms, higher production capacity leads to lower prices. However, the decline in prices as industry capacity rises is l…
Simultaneous and Sequential Contributions to Step-level Public Goods
In a step-level public-good experiment, we investigate how the order of moves (simultaneous vs. sequential) and the number of step levels (one vs. two) affects public-good provision in a two-player game. We find that the sequential order of moves significantly improves public-good provision and payoffs, even though second movers often punish first movers who give less than half of the threshold contribution. The additional second step level—which…
Cooperation in multiplayer dilemmas
Economics (6 works) · Experimental Behavioral Economics Studies (5 works) · Mathematics (4 works) · Merger and Competition Analysis (4 works) · Microeconomics (4 works) · Econometrics (3 works) · Economic theories and models (3 works) · Game Theory and Applications (3 works) · Mathematical economics (3 works) · Nash equilibrium (3 works)