PowerPoint Integration: In the Microsoft Store

If you haven’t heard the news, MobLab’s integration with PowerPoint is now available as an “add-in” in the Microsoft Store. The integration will work for PowerPoint versions 2013 or newer. This morning, I opened PowerPoint, clicked the Insert tab, and  selected “Store”. Then, I searched for MobLab in the Microsoft Store, pressed the “Add” button, and the PowerPoint add in loaded onto my screen.

From there, I tested the add-in. The add-in worked as described in an earlier blog post. Additionally, I saved my PPT slides with poll questions to a USB drive and loaded the slides onto a classroom computer. PowerPoint prompted me with an icon to confirm that MobLab was a safe add-in. Easy. From there, the technology worked like a charm. Obviously, different campuses will have different IT restrictions. Check the classroom you plan to use in advance.

Linear Public Goods game data graphs

Students and Research

At CTREE Atlanta in 2016, Tom Nechyba gave an outstanding plenary on engaging students in research. Over at his Teach Better blog, Doug McKee provided a great take on the talk,

I found Thomas Nechyba’s talk on how and why we should get undergraduate students involved in research incredibly inspiring. The Duke Economics Department runs semester-long senior essay workshops so students aren’t working in isolation with their advisors. They’ve carefully analyzed several years’ worth of senior essays and found that the quality has gone up substantially since they started the workshops. They’ve created interdisciplinary teams of faculty and students to work on tough problems through the Bass Connections program. And they’ve overhauled the curriculum to give undergraduates the tools they need for research as early as possible. If only more departments would be this willing to try new things.

Tom and the Duke Economics Department should be commended. At MobLab, we’re trying to do our own part to help students get engaged in research. Our workbooks all contain sequenced games that can be thought about like a control and treatment. In that sense, ceteris paribus really comes alive. Also, the “Further questions” sections in our workbooks all have data related questions. You can never start too early!

Of course, we know that bringing a significant data component into a Principles Class is a huge undertaking. But, we can certainly start building the foundations by having students calculate central tendencies, conduct t-tests, and create other relevant graphs. Most importantly I think the games we do at MobLab spark intrigue and motivate students to want to know the answer to questions. This spark is needed for any good researcher.

Multilateral bargaining game

MobLab for Political Science Courses

MobLab has a number of classroom experiments related to political science classes.In addition to our games, we also have a survey technology where you can run polls in class (similar to Clicker, TopHat, Poll Everywhere, etc.). Currently we have been used in Intro to Political Science, Comparative Politics, and Political Game Theory courses. Our games touch on a number of topics (and we also have a survey technology to run polling questions and survey-based experiments):

  • Models of Voting
  • Models of Political Competition
  • Free-Rider Problems
  • Commons Problems
  • Coalition Formation
  • Coordination Problems

In each outline below, I link to our game guides and (where applicable) to our module guides. If you already have an account, you can check these games out in the game library. If you don’t have an account, create one. It’s commitment free and gives you access to all the materials. Here is the link to sign up.

Free Rider Problems – Our linear public goods game embeds students in a group with others. Each student has an endowment of money to keep or donate to a water sanitation project. It is privately optimal to keep money, but socially optimal to donate. This game illustrates the tension between what is good for the individual and what is good for the group. Across rounds, students often follow their dominant strategy to free-ride. In our public goods module, we suggest enabling communication too. When students can talk to each other you observe increased cooperation. This can open up discussion about social capital, differences between close-knit communities and larger communities, etc.

Public Good: Linear game

Commons Problems – Our commons fishery game embeds students in a group where each operates a fishing boat on a lake. The fish stock doubles at the end of each round, up to the maximum capacity of the lake. In each round, students can catch fish (without knowing how many fish others are catching). With groups N>1, the results are tragic. In our commons module, we suggest manipulating group size to illuminate the importance of property rights and also enabling communication to showcase how groups can form constitutions and administer verbal punishments to help preserve the commons.

Coordination Problems – Both of the above games help demonstrate tension between individual and group optimum. Enabling chat can also showcase how some groups can help to coordinate individuals to overcome free-riding or tragedy. However, because these mechanisms are non-binding we may consider them risky. The Stag Hunt Game can build on these games and discuss the idea of multiple equilibria and the risk associated with the Pareto Optimal (Stag, Stag) equilibrium.

These first three games can be thought about as making the case for government. The next three games help highlight topics related to how/when people vote and how politicians compete.

Models of Voting – Delve into the paradox of voting with our Voter Turnout Game. Students are embedded in groups where some students want a soccer club and others want a basketball club. All voters incur a cost to voting and know the number of voters in favor of each club. Students face a simple choice: vote and incur a cost or abstain and incur zero cost. Instructors can manipulate group size, distribution of the cost to voting, and the “party distribution”. These manipulations help illustrate the size effect, competition effect, the underdog effect and the cost of voting.

Political Competition – In the Two Candidate Election, students act as politicians who locate their policy decisions along a line. You can manipulate the location of the median voter. Across rounds, the two candidates tend to converge to the median voter.

Coalition Formation – In the The Multilateral Bargaining Game, students are zombies who make proposals about how to divide humans across a population of three zombies. After all proposals are submitted, one proposal is selected at random. Each zombie then votes Yes or No on the selected proposal. The proposal passes if it receives 2/3 Yes votes. Students learn quickly that when you have the power to propose life is good. Also, cutting out the third zombie is a good idea.

Multilateral bargaining game

Beyond the listed experiments we also have Prisoner’s Dilemma, Public Goods with Rewards/Punishments, Double Auction with Externalities, Cap and Trade, Trust Game, Bargaining, etc. You also can create your own matrix form games, for example, Chicken to help illustrate the Nuclear Missile Crisis.

Finally, our survey technology allows for instructors to run survey-based experiments in their classes. If you want to explore framing effects, you can create a question for Frame A and Frame B. The software automatically divides students into these two frames.

Thank you for your interest in MobLab! Please contact us at support@moblab.com with any additional questions.

Update: New Workbook Content

Today we updated our Instructor and Student Workbooks. The instructor side of the workbooks (Principles of Micro, Principles of Macro, Intermediate Micro) include:

  • General description of the game, learning objectives, time requirements, etc.
  • Step-by-step instructions on how to implement pre-built curriculum
  • Videos that walk instructors through standard results presentation
  • More support videos and content related to running our games and surveys

The student side of the workbooks (Micro, Macro, Intermediate Micro) include:

  • “Warm-up questions” can be completed by watching video instructions. These improve comprehension on the rules of the game and concepts related to learning objectives.
  • “Thinking through theory” either preps students to see certain features of a game or helps to draw out features of a game after-the-fact.
  • “Experimental notes” prompt students to record decisions and make notes about experiences during a game. These notes are helpful during post-game discussion.
  • “Further questions” act as additional questions for reflection on the learning objective related to the game.

These workbooks lower the cost of instructor preparation for running classroom experiments. We estimate that an instructor will be able to confidently run a game in class, and discuss that game, with 30 minutes preparation. Moreover, the workbooks make integration with the course more seamless. For students, classroom experiments do not seem separate or “other” — they are not a diversion, but, part of the whole. Research suggests this kind of integration is crucial for achieving learning gains.

Finally, to help familiarize faculty and graduate students with pedagogy for teaching with games and introduce them to new features of our technology (e.g. PowerPoint Integration, LMS Integration, etc.) I will be doing workshops. Below is the workshop flyer from the University of Cincinnati. Contact us at support@moblab.com if you would like to set up a workshop in-person or over Skype.

PowerPoint Integration: MobLab Multiple Choice

Great lectures have great flow. With the new MobLab integration with PowerPoint, you can run polls from your slides. Soon MobLab will be available as an “add-in” in the Microsoft store. In this post I’d like to showcase the functionality.

To create a poll instructors select the content area of the slide, choose the My Add-ins arrow (in the Insert Tab), and choose MobLab. Instructors are greeted with a MobLab sign in page, sign-in, and choose their relevant class from a menu of MobLab courses. The size of the content box can be adjusted to fit the full screen.

Currently MobLab has two kinds of questions: multiple choice (single answer) and multiple choice (multiple answer). Instructors are prompted to give the question a name for their records (more on that later) and fill in the question text. Images can also be added and check boxes can be selected to indicate the correct answer. Whenever you are finished press “Done”.

Before pressing “Run” instructors can see the number of students logged onto their MobLab accounts. Responses can be displayed in real-time or after the poll is completed. Also, clicking on the picture causes it to expand to take up the content area.

Here are what the responses look like when results are displayed:

To finish the poll, select “Finish”. The “Finish” button will become a “Run Again” button so instructors can run the same polls for their next class. After pressing “Run Again” instructors can select the class name at the top of the PowerPoint screen (MobLab U in this case) and choose a different class from the dropdown menu. This will cause all slides to update to that new class.None of the earlier results will be lost or overwritten.

The results are saved to the corresponding class in the Instructor Console in a playlist called “PPT”. Each question in the PowerPoint slide is saved as a single survey activity. For example, if questions were asked across two recitations it would appear as follows:

For easy grading, select the class name in the upper right corner of the Instructor Console and choose “More…”. If you have integrated MobLab with your Learning Management System (LMS) you can send the grades to your LMS or you can simply download the performance. In either case, you can merge the two recitations by grouping students based on “Unique Activity Names”. This is where giving your survey a specific name is helpful.

We developed this feature for a couple instructors who asked us. No doubt there are many more who will want to use PowerPoint Integration. If you have any questions, please contact us at support@moblab.com. We are always happy to help!

Classroom Game Theory Experiments

MobLab in Managerial Economics and Organizational Behavior

We have a number of instructors using MobLab for their managerial economics courses. For example, see our conversation with Kevin McCabe. How does MobLab fit with managerial economics and organizational behavior courses? Really well. I would hazard to guess there are more applicable games than someone could reasonably play in a semester. What topics are covered with MobLab games?

  • Oligopoly
  • Collusion
  • Team Incentives
  • Equity and Fairness Concerns
  • Reputation and Trust
  • Asymmetric Information
  • Framing Effects
  • Competitive Markets
  • Coordination
  • Risk Preferences

In each outline below I link to our game guides and (where applicable) to our module guides. If you already have an account, you can check these games out in the game library. If you don’t have an account, create one. It’s commitment free and gives you access to all the materials. Here is the link to sign up.

For the oligopoly and collusion related topics, please see our post on Industrial Organization.

Team Incentives – The linear public goods game is the classic illustration of the incentive to free-ride in groups. In our Public Goods with Punishment and Rewards Game you can manipulate anonymity, enable chat, and allow for individuals to incur a cost to reward or punish other group members. This can be a great game to showcase the power of social sanctions and communication.

Public Goods: Punishments and Rewards game screen

Equity and Fairness ConcernsThe Ultimatum Game is a classic game to highlight equity and fairness concerns. It can be a great launching point to discuss how individuals evaluate outcomes and are willing to incur a cost to preserve norms.

Reputation and TrustThe Trust Game has been a workhorse game in organizational economics because, “Trust within organizations increases efficiency by lower monitoring costs (e.g. Frank, 1988), lowering turnover (Dirks & Ferrin, 2002), and increasing uncompensated positive behavior from employees (Dirks & Ferrin, 2002; Konovsky & Pugh, 1994).” (Johnson and Mislin, 2011). In essence, increased trust lowers transaction costs.

Asymmetric InformationThe Lemons Market is a classic representation of the problems associated with asymmetric information.

Framing Effects – We have a number of pre-built surveys to help illustrate heuristics and biases like anchoring and insufficient adjustment, substitution heuristic, mental accounting, availability bias, and more. Our survey technology can be used to create your own framed experiments.

There are so many other areas we could explore here: risk preferences, minimum effort (coordination), auctions (e.g. private value, common value, ascending, descending, etc.), basic game theory concepts, competitive market, long run equilibrium, bargaining, etc.

We are also in the process of creating a Principal-Agent game that should be ready by early fall 2017. Keep an eye out for that! Beyond games, it is worth mentioning that our survey technology can be used to poll students on class content regardless of subject.

Please contact us at support@moblab.com with any additional questions.

Teaching instructors to use multiple playlists when running MobLab games

MobLab in Principles of Micro Courses

Principles of Microeconomics is one of MobLab’s most popular courses. The combination of MobLab games and polling capabilities (as a replacement to Clicker, TopHat, Poll Everywhere etc.) are leading to new adoptions each day as we move closer to Fall 2017. Most instructors know how they want to use polling technology, but, there are questions surrounding the games. In this post we will address one of those questions:

Which games should I play?

With over 60+ games this question is understandable. The quick answer is, it depends on what learning objectives you are trying to highlight. MobLab economists have gone chapter-by-chapter through the most popular economics textbooks and made game recommendations. For each recommendation we list the learning objectives associated with that game. Many people find these are a good guide to help figure out what games to play.

You can find more textbooks here. Another way to figure out which games to play is, what is everyone else playing? Our three most played principles of microeconomics games are the double auction (competitive market), comparative advantage, and the commons. I describe each briefly below.

Double Auction – MobLab divides students into markets equally split between buyers and sellers. Buyers are given a value schedule for oranges that reflect diminishing marginal utility. Sellers are given a cost schedule for oranges that reflects increasing marginal cost. To learn more about the market rules see our video instructions. The value and cost schedules can be altered to test how curve shifts affect equilibrium price and quantity. Moreover, instructors can implement policies like price controls, taxes, and subsidies.

Competitive Market (Continuous Double Auction) game

Comparative Advantage – Students are sorted into pairs. Each operates a food truck, dividing 30 minutes of preparation between burgers and fries. A student’s payoff depends on what she brings on the truck. She only sells combos, so her payoff is equals whichever quantity is smallest (i.e. payoff = min{burgers, fries}). Within each pair, one has an absolute advantage in both but players differ in opportunity costs.  You can toggle between no-trade and trade conditions to help students see specialization, comparative advantage, and gains from trade.

Commons: Fishery – The game starts with each group’s fish stock at the lake’s capacity.  Each round, students on that lake simultaneously choose how many fish to catch. At the end of each round, the fish double, up to a maximum of lake capacity. At the end of the game, the doubled fish stock is evenly divided amongst the group. As a result, the group catching half of the stock in every round maximizes total fish caught. You can alter group size, enable chat, and make the game indefinitely repeated to bring out different learning objectives.

MobLab's Tragedy of the Commons Fishing Game

There are still many more games we could talk about: Cournot, Market for Lemons, Public Goods, Prisoner’s Dilemma, and more. Please feel free to contact support@moblab.com and set up a meeting with a MobLab team member. We love to help our instructors!





Winning at Education: Irrigating Deserts

“The task of the modern educator is not to cut down jungles, but to irrigate deserts.” -C.S. Lewis

To my mind, there is no doubt that many students enter economics classes with faulty logic and preconceived notions. In one of his syllabi, Henry Simons famously noted, “Academic economics is primarily useful, both to the student and to the political leader, as a prophylactic against popular fallacies.” But, I do not believe the aim should be to “cut down the jungle” and show people the faults in their logic. Rather, people will notice those faults when we “irrigate the deserts”.

When we impart inquiry and the joy of discovery to students everyone wins. Economics is the study of human action. If our students have ever looked out the window and wondered “why?”, we can, as students of social understanding ourselves, put on our economic detective hats and formulate a reasonable answer. After all, economics has been applied to help understand things people never thought it could like economics of the family, religion, and other topics. (Side note: if you’re really interested in the application of economic reasoning when you “look out the window” check out The Economic Naturalist and listen to these podcasts with Robert Frank here and here).

Once we have a theory for the mechanisms underlying a decision situation, let’s invite students to ask, “What are the testable implications?”  Then we can lead students in their scientific development by asking,  “How could we test that?” We can have a dialogue with students that begins with their passions and bolsters their critical thinking.

This is one reason I LOVE MOBLAB. Economics has models of how the world works. Then the instructor can use MobLab to populate those models with real humans. How accurately do our theories describe the data? A confirmation or failure of theory are both interesting. Confirmation gives us confidence. Failure tells us to keep looking! In my experience, students love this invitation to inquiry and comparing theory with data. It’s more fun for them and for us.

MobLab Emily Young's favorite game, Bertrand Competition

MobLab in Industrial Organization Courses

How does MobLab fit with your Industrial Organization course? Really well, actually. Below are common topics covered in IO courses that mesh well with MobLab games:

  • Quantity Competition
  • Price Competition
  • Spatial Competition
  • Collusion
  • Vertical Relations
  • Research and Development
  • Monopoly
  • Third Degree Price Discrimination
  • Basic Game Theory

In each outline below I link to our game guides and (where applicable) to our module guides. If you already have an account, you can check these games out in the game library. If you don’t have an account, create one. It’s commitment free and gives you access to all the materials. Here is the link to sign up.

Quantity Competition – Cournot and Stackelberg (shown below) games – Students participate in a market with at least one other competitor. In the Stackelberg version of this game there is a first mover. See our module on Cornout Competition and that builds intuition for how “N” effects market equilibrium and consumer welfare.

Price Competition – Bertrand – Students participate in a market with price competition for Econ 101 notes. With the default parameters marginal cost is $2 and the market demand curve is Q(P) = 3600 – 200P.  You can explore factors that soften price competition like capacity constraints and price matching.

Collusion – Cournot or Bertrand – Enable chat communications between players and make the games indefinitely repeated to facilitate collusive arrangements. See our module on Bertrand Competition and Collusion here.

Vertical Relations – Double Marginalization – Students participate as wholesaler-retailer pairs. In the case of double marginalization, both act as monopolists. However, the game can be manipulated to allow for contractual solutions to the double mark up problem. Contractual solutions include vertical integration and franchising.

Basic Game Theory – Battles of the Sexes – Having students participate in a simple 2×2 matrix game (there are many on the MobLab platform) like Battle of the Sexes can help to facilitate a discussion on Network Externalities and the coordination problem of which technology emerges.

Spatial Competition – Two Candidate Election –  While the game is skinned a political science game our Two Candidate Election game can be used effectively to teach Hotelling Spatial Competition and explain why firms tend to locate side-by-side.

Research and Development – R&D Patent Race – This game is useful for an illustration of how R&D investments function as a kind of all-pay-auction.

Soon we will be releasing a monopoly game (better for the learning objectives than Cournot N=1) that will allow students to explore third degree price discrimination. Keep an eye out for that! Beyond games, it is worth mentioning that our survey technology can be used to poll students on class content regardless of subject.

Please contact us at support@moblab.com with any additional questions.