Here is a list of all the available MobLab games!
Bargaining Games
Bargaining: Alternating Round | Game Guide | Student Instructions
Two players have to decide how to split a pot of money. For each round that the players cannot decide on a split, the pot of money shrinks.
One player proposes how to split a pot of money. If accepted, the players split the prize according to the proposal. If rejected, both players get nothing.
Dictator | Game Guide | Student Instructions
A two-player game where one player decides how to split a pot of money between himself and another player.
Trust | Game Guide | Student Instructions
The first player decides how much of his cash to give to the second player. The amount is multiplied, and the second player has to decide how much to return to the first player.
Ultimatum: Strategy Method | Game Guide | Student Instructions
Players play both sides of the ultimatum game and see if they would be willing to accept their own offer.
Markets
Competitive Market (Continuous Double Auction) | Game Guide | Student Instructions
Buyers and sellers trade goods based on their values and costs using a continuous double auction format.
Market for Lemons | Game Guide | Student Instructions
A buyer must decide whether or not to accept the seller’s price, while not knowing as much about the quality of the good as the seller does.
KR Matching | Game Guide | Student Instructions
Hospitals and residents try to make good matches under decentralized or centralized matching mechanisms.
Asset Market (Bubbles & Crashes) | Game Guide | Student Instructions
Students allocate their wealth between cash and a dividend-paying asset whose price is determined in a competitive market. Speculative bubbles are not uncommon.
Comparative Advantage | Game Guide | Student Instructions
Players operate a food truck and must allocate time to preparing burgers and preparing fries. One player has an absolute advantage in the production of both, but the players differ in opportunity cost.
Simple Labor Market | Game Guide | Student Instructions
Workers and firms trade participate in a competitive market for labor. Unemployment insurance and minimum wage can also be added to the market.
Interest Rate & Inflation | Game Guide | Student Instructions
Players have a private rate of return an investment, but only half the group has capital. Instructors can add certain inflation (to demonstrate the Fisher effect) or uncertain inflation.
Production, Entry & Exit | Game Guide | Student Instructions
Rideshare drivers chooses whether or not to drive, then have to decide how many hours to drive. Revenue for each hour driven that day is determined by the number choosing to drive.
Pit Market | Game Guide | Student Instructions
Players get out of their seats and negotiate face-to-face, using MobLab to record transactions.
Beer Game | Game Guide | Student Instructions
Players are firms in the supply chain and try to minimize the cost of holding inventory and penalties from not having enough product.
Auctions
Ascending Clock Auction | Game Guide | Student Instructions
A private value auction where the price ticks up at regular intervals. At each price players can drop out of the auction. It ends when one player remains and pays the current clock price.
A private value auction where the auction price ticks down. The auction ends when a player claims the good and pays the current price.
Private Value English Auction | Game Guide | Student Instructions
Players bid against one another to win an item in an auction. Each player has a private value, and must choose when it’s worth it to keep bidding.
Private Value Sealed Bid Auction | Game Guide | Student Instructions
Players compete for the same item, but each has a private value. Bids in this auction are private and submitted simultaneously.
Common Value English Auction | Game Guide | Student Instructions
Players have an informative private signal about the true value of the item, but no player knows the value for sure. Bids are public.
Common Value Sealed Bid Auction | Game Guide | Student Instructions
Just like the Common Value English Auction, but bids in this game are secret!
Display Ad Auction | Game Guide | Student Instructions
Advertisers compete to display their ad on the Steaming Panda Spa website. For every impression (a user visiting the website) the auctioneer uses a sealed-bid auction to determine which advertiser will show its ad.
Classic Games
Hide & Seek | Game Guide | Student Instructions
Each player first chooses under which of four cups to Hide a coin, then chooses under which of four cups to look for (Seek) a coin. Just like the childhood game, one wants to hide where others do not seek and seek where others choose to hide.
Matrix: Instructor Specified | Game Guide | Student Instructions
Construct any 2x2 to 4x4 matrix game with configurable payoffs.
Battle of the Sexes | Game Guide | Student Instructions
The classic game of (mis)coordination: while both players prefer coordination over miscoordination, each prefers coordinating on a different pure-strategy Nash equilibrium.
Matching Pennies | Game Guide | Student Instructions
Perhaps the simplest game to demonstrate zero-sum games and mixed-strategy equilibria.
MinMax (Zero-Sum Matrix) | Game Guide | Student Instructions
MobLab's most difficult mixed-strategy game, based on O’Neill (1987).
Prisoner’s Dilemma | Game Guide | Student Instructions
The classic matrix game where players decide whether to defect or cooperate with the other player.
Rock, Paper, Scissors | Game Guide | Student Instructions
The universal nature of this childhood game makes it ideal for demonstrating zero-sum games and mixed-strategy equilibria in a context slightly more complicated than Matching Pennies.
Stag-Hunt | Game Guide | Student Instructions
The classic two-person game where the common good requires collective action, but contributing entails payoff risk.
Minimum Effort | Game Guide | Student Instructions
Players choose an effort level, and their payoff is determined by the minimum of all players’ efforts less the cost of their own effort.
Prisoner’s Dilemma (Push and Pull) | Game Guide | Student Instructions
The game is a classic prisoner's dilemma, but the framing may obscure this fact.
Public Choice
Tragedy of the Commons | Game Guide | Student Instructions
Players decide how many hours to spend fishing from an open-access lake (a common-pool resource). At the end of each period, each player learns the total hours spent fishing as well as the hourly return from fishing.
Multilateral Bargaining | Game Guide | Student Instructions
In this multiplayer zombie game, players propose how to split a group of captured humans. If the proposal is rejected, some humans will escape!
Two-Candidate Election (Median Voter) | Game Guide | Student Instructions
Two players compete as candidates in a political race by deciding where to fall on the policy spectrum. The candidate with the most votes wins.
Externalities (Judge-Me-Not) | Game Guide | Student Instructions
Firms choose between a Clean and a Dirty technology. The Dirty technology lowers production costs, but increases pollution—increasing healthcare costs for all.
Externalities with Policy Interventions | Game Guide | Student Instructions
Buyers and sellers meet in a market for RobotDogs. Instructor chooses whether barking creates a negative externality (e.g., noise pollution) or a positive externality (e.g., crime reduction).
Public Good:Punishments & Rewards | Game Guide | Student Instructions
Players choose how many hours to contribute to the public good - working on the Ensemble section as opposed to working on a Solo.
Public Good: Linear | Game Guide | Student Instructions
Players decide how much money to contribute to ensure clean water for the community. Each player receives some benefit of the clean water, depending on the total contributions.
Public Goods: Threshold | Game Guide | Student Instructions
Just like Linear Public Goods, except if the total contribution does not meet the threshold, no money is returned and the water remains dirty.
Commons: Fishery with Quota | Game Guide | Student Instructions
Players decide how many fish to catch from an open-access lake. Overfishing may prevent the sustainability of the fish stock for future use. Either before or after players have depleted the fish stock, quotas can be introduced to manage the fish stock.
Commons: Fishery | Game Guide | Student Instructions
Players decide how many fish to catch from an open-access lake. Overfishing may prevent the sustainability of the fish stock for future use.
Voter Turnout (2 Candidates) | Game Guide | Student Instructions
Each player prefers to have one of two school clubs created has a preferred club and must make a choice: Vote or Abstain. Abstention costs nothing and voting is costly.
Voter Paradox (1 Candidate) | Game Guide | Student Instructions
To determine whether the creation of a new school club is worthwhile, players are asked to vote. Each student has a choice: Vote or Abstain. Abstention costs the student nothing and voting is costly.
Finance & Macro
Competitive Market (Continuous Double Auction) | Game Guide | Student Instructions
Buyers and sellers trade goods based on their values and costs using a continuous double auction format.
(Keynesian) Beauty Contest | Game Guide | Student Instructions
Players pick an integer from 0-100 with the goal of picking the number that is closest to a fraction of the average of all guesses.
Bank Run | Game Guide | Student Instructions
Players decide if they will withdraw money from the bank over the course of some days. If too many players withdraw, the bank will collapse.
Herding (Information Cascade) | Game Guide | Student Instructions
Players guess in sequence about the state of the world, knowing what previous players have guessed and their own private signal.
Asset Market (Bubbles and Crashes) | Game Guide | Student Instructions
Students allocate their wealth between cash and a dividend-paying asset whose price is determined in a competitive market. Speculative bubbles are not uncommon.
Comparative Advantage | Game Guide | Student Instructions
Players operate a food truck and must allocate time to preparing burgers and preparing fries. One player has an absolute advantage in the production of both, but the players differ in opportunity cost.
Simple Labor Market | Game Guide | Student Instructions
Workers and firms trade participate in a competitive market for labor. Unemployment insurance and minimum wage can also be added to the market.
Interest Rate & Inflation | Game Guide | Student Instructions
Players have a private rate of return an investment, but only half the group has capital. Instructors can add certain inflation (to demonstrate the Fisher effect) or uncertain inflation.
Industrial Organization
R&D Race (All-Pay English Auction) | Game Guide | Student Instructions
Players bid against one another in an auction to win a R&D project. Each player has a private value, and must choose when it’s worth it to keep bidding. Everyone pays their highest bid.
R&D Race (All-Pay Sealed Bid Auction) | Game Guide | Student Instructions
Players submit sealed bids to win a R&D project. Each player has a private value and everyone must pay their bid.
Bertrand Competition | Game Guide | Student Instructions
Players simultaneously announce a price for a homogenous good (course notes for a difficult course). All demand goes to the firm announcing the lowest price, subject to optional capacity constraints.
Cournot | Game Guide | Student Instructions
Players individually decide how many units to produce. The market price is determined by all players’ production decisions.
Double Marginalization | Game Guide | Student Instructions
The wholesaler posts a price and the Retailer decides how much quantity to purchase at that price. With integration, prior to making decisions about price and quantity, the wholesaler and retailer bargain over an integration contract. If there is a merger then one firm acts as a monopolist.
Stackelberg Competition | Game Guide | Student Instructions
Players sequentially choose output of a homogenous good (direct flights). The firm choosing first (LeadAir) knows that the second-moving firm (FollowAir) will learn the leader’s output choice before choosing its output.
Decision Making
Risk Preferences: Bomb Risk Elicitation Task | Game Guide | Student Instructions
Measure students' risk preferences. A bomb is randomly placed in one of 100 boxes, and each player chooses the number of boxes she will open. She earns zero if the bomb is in one of the opened boxes. Otherwise, her payoff equals the number of boxes she opened.
Consumer Choice: Cobb-Douglas | Game Guide | Student Instructions
Players allocate a sum of money between two types of sushi. Prices are given, and the utility function is Cobb Douglas. A player knows the utility from the next piece of each type, and chooses one piece at at time until the budget is depleted.
Monty Hall | Game Guide | Student Instructions
The game used to build intuition about Bayes' Rule. Play the classic version or MobLab's twist: Space explorers trying to get home.
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