Majoritarian Blotto contests with asymmetric battlefields: an experiment on apex games

We investigate a version of the classic Colonel Blotto game in which individual battlefields may have different values. Two players allocate a fixed discrete budget across battlefields. Each battlefield is won by the player who allocates the most to that battlefield. The player who wins the battlefi...

Full description

Bibliographic Details
Main Authors: Montero, Maria, Possajennikov, Alex, Sefton, Martin, Turocy, Theodore L.
Format: Article
Published: Springer 2016
Subjects:
Online Access:https://eprints.nottingham.ac.uk/29469/
_version_ 1848793792729055232
author Montero, Maria
Possajennikov, Alex
Sefton, Martin
Turocy, Theodore L.
author_facet Montero, Maria
Possajennikov, Alex
Sefton, Martin
Turocy, Theodore L.
author_sort Montero, Maria
building Nottingham Research Data Repository
collection Online Access
description We investigate a version of the classic Colonel Blotto game in which individual battlefields may have different values. Two players allocate a fixed discrete budget across battlefields. Each battlefield is won by the player who allocates the most to that battlefield. The player who wins the battlefields with highest total value receives a constant winner payoff, while the other player receives a constant loser payoff. We focus on apex games, in which there is one large and several small battlefields. A player wins if he wins the large and any one small battlefield, or all the small battlefields. For each of the games we study, we compute an equilibrium and we show that certain properties of equilibrium play are the same in any equilibrium. In particular, the expected share of the budget allocated to the large battlefield exceeds its value relative to the total value of all battlefields, and with a high probability (exceeding 90% in our treatments) resources are spread over more battlefields than are needed to win the game. In a laboratory experiment, we find that strategies that spread resources widely are played frequently, consistent with equilibrium predictions. In the treatment where the asymmetry between battlefields is strongest, we also find that the large battlefield receives on average more than a proportional share of resources. In a control treatment, all battlefields have the same value and our findings are consistent with previous experimental findings on Colonel Blotto games.
first_indexed 2025-11-14T19:05:56Z
format Article
id nottingham-29469
institution University of Nottingham Malaysia Campus
institution_category Local University
last_indexed 2025-11-14T19:05:56Z
publishDate 2016
publisher Springer
recordtype eprints
repository_type Digital Repository
spelling nottingham-294692020-05-04T17:29:29Z https://eprints.nottingham.ac.uk/29469/ Majoritarian Blotto contests with asymmetric battlefields: an experiment on apex games Montero, Maria Possajennikov, Alex Sefton, Martin Turocy, Theodore L. We investigate a version of the classic Colonel Blotto game in which individual battlefields may have different values. Two players allocate a fixed discrete budget across battlefields. Each battlefield is won by the player who allocates the most to that battlefield. The player who wins the battlefields with highest total value receives a constant winner payoff, while the other player receives a constant loser payoff. We focus on apex games, in which there is one large and several small battlefields. A player wins if he wins the large and any one small battlefield, or all the small battlefields. For each of the games we study, we compute an equilibrium and we show that certain properties of equilibrium play are the same in any equilibrium. In particular, the expected share of the budget allocated to the large battlefield exceeds its value relative to the total value of all battlefields, and with a high probability (exceeding 90% in our treatments) resources are spread over more battlefields than are needed to win the game. In a laboratory experiment, we find that strategies that spread resources widely are played frequently, consistent with equilibrium predictions. In the treatment where the asymmetry between battlefields is strongest, we also find that the large battlefield receives on average more than a proportional share of resources. In a control treatment, all battlefields have the same value and our findings are consistent with previous experimental findings on Colonel Blotto games. Springer 2016-01-31 Article PeerReviewed Montero, Maria, Possajennikov, Alex, Sefton, Martin and Turocy, Theodore L. (2016) Majoritarian Blotto contests with asymmetric battlefields: an experiment on apex games. Economic Theory, 61 (1). pp. 55-89. ISSN 1432-0479 Colonel Blotto Contest theory Majoritarian objective Resource allocation Experiment http://link.springer.com/article/10.1007%2Fs00199-015-0902-y doi:10.1007/s00199-015-0902-y doi:10.1007/s00199-015-0902-y
spellingShingle Colonel Blotto
Contest theory
Majoritarian objective
Resource allocation
Experiment
Montero, Maria
Possajennikov, Alex
Sefton, Martin
Turocy, Theodore L.
Majoritarian Blotto contests with asymmetric battlefields: an experiment on apex games
title Majoritarian Blotto contests with asymmetric battlefields: an experiment on apex games
title_full Majoritarian Blotto contests with asymmetric battlefields: an experiment on apex games
title_fullStr Majoritarian Blotto contests with asymmetric battlefields: an experiment on apex games
title_full_unstemmed Majoritarian Blotto contests with asymmetric battlefields: an experiment on apex games
title_short Majoritarian Blotto contests with asymmetric battlefields: an experiment on apex games
title_sort majoritarian blotto contests with asymmetric battlefields: an experiment on apex games
topic Colonel Blotto
Contest theory
Majoritarian objective
Resource allocation
Experiment
url https://eprints.nottingham.ac.uk/29469/
https://eprints.nottingham.ac.uk/29469/
https://eprints.nottingham.ac.uk/29469/