nui maynooth talk 7th nov 2008
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Computable and Experimental Economics at theUniversity of Limerick
Stephen Kinsella
Dept. Economics,University of [email protected]
www.stephenkinsella.net
November 5, 2008
Stephen Kinsella (UL) Computable and Experimental Economics November 5, 2008 1 / 14
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Today
1 Computable Economics
2 Experimental Economics
3 iCEEL
4 An Experiment
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By way of a preamble. . .
But I believe that there is no philosophical highroad in science,with epistemological signposts. . . we are in a jungle and find ourway out by trial and error, building our road behind us as weproceed. We do not find signposts at crossroads, but our scoutserect them, to help the rest.
––Max Born, Experiment and Theory in Physics (1943)
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What is Computable Economics?
we, as economic theorists, tend to ‘formulate thequestions’ in the language of a mathematics that thedigital computer does not understand—classical realanalysis—but ‘get together the data’ that it does,because the natural form in which economic dataappear is in terms of integer, natural or rationalnumbers. The transition between the two domainsremains a proverbial black box. . .
–(3, pg. 4)
Stephen Kinsella (UL) Computable and Experimental Economics November 5, 2008 4 / 14
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An ExampleIntermediate Value Theorem
Theorem (Intermediate Value Theorem)
Let f : R −→ R be a continuous function from the closed interval [a, b] toR and let f (a) < 0 and f (b) > 0. Then ∃x ∈ R and a < x < b such thatf (x) = 0.
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Figure: Example of a fixed point. Intermediate Value Theorem underpins fixedpoint theorems, which underpin general equilbrium theory.
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An ExampleConstructive Intermediate Value Theorem
Theorem (Constructive Intermediate Value Theorem)
Let f : R −→ R be a continuous function, from [a, b] ∈ R to R, and letf (a) < 0, f (b) > 0; then ∀ε > 0, ∃x ∈ R such that a < x < b subject to|f (x)| < ε.
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So What?
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Definitions & Pioneers
Defined as the use of experimental methods to evaluate theoreticalpredictions of economic behaviour (1).
Uses controlled, scientifically designed experiments to test economictheories under laboratory conditions.
Pioneered by Smith (1962), Kahenman & Tversky (1979)
Modern variants: Behavioural game theory, neuroeconomics, fieldexperiments, computable experimental economics
Stephen Kinsella (UL) Computable and Experimental Economics November 5, 2008 9 / 14
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Definitions & Pioneers
Defined as the use of experimental methods to evaluate theoreticalpredictions of economic behaviour (1).
Uses controlled, scientifically designed experiments to test economictheories under laboratory conditions.
Pioneered by Smith (1962), Kahenman & Tversky (1979)
Modern variants: Behavioural game theory, neuroeconomics, fieldexperiments, computable experimental economics
Stephen Kinsella (UL) Computable and Experimental Economics November 5, 2008 9 / 14
![Page 11: NUI Maynooth Talk 7th Nov 2008](https://reader033.vdocuments.net/reader033/viewer/2022052618/54b3bfdc4a7959780a8b45e5/html5/thumbnails/11.jpg)
Definitions & Pioneers
Defined as the use of experimental methods to evaluate theoreticalpredictions of economic behaviour (1).
Uses controlled, scientifically designed experiments to test economictheories under laboratory conditions.
Pioneered by Smith (1962), Kahenman & Tversky (1979)
Modern variants: Behavioural game theory, neuroeconomics, fieldexperiments, computable experimental economics
Stephen Kinsella (UL) Computable and Experimental Economics November 5, 2008 9 / 14
![Page 12: NUI Maynooth Talk 7th Nov 2008](https://reader033.vdocuments.net/reader033/viewer/2022052618/54b3bfdc4a7959780a8b45e5/html5/thumbnails/12.jpg)
Definitions & Pioneers
Defined as the use of experimental methods to evaluate theoreticalpredictions of economic behaviour (1).
Uses controlled, scientifically designed experiments to test economictheories under laboratory conditions.
Pioneered by Smith (1962), Kahenman & Tversky (1979)
Modern variants: Behavioural game theory, neuroeconomics, fieldexperiments, computable experimental economics
Stephen Kinsella (UL) Computable and Experimental Economics November 5, 2008 9 / 14
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Stephen Kinsella (UL) Computable and Experimental Economics November 5, 2008 10 / 14
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iCEEL
New Lab, New KBS
20 Computers, proper partitions, servers, software, etc
Mobile Lab (20 Laptops)
Trading Simulation Floor
Jan 2009
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iCEEL
New Lab, New KBS
20 Computers, proper partitions, servers, software, etc
Mobile Lab (20 Laptops)
Trading Simulation Floor
Jan 2009
Stephen Kinsella (UL) Computable and Experimental Economics November 5, 2008 11 / 14
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iCEEL
New Lab, New KBS
20 Computers, proper partitions, servers, software, etc
Mobile Lab (20 Laptops)
Trading Simulation Floor
Jan 2009
Stephen Kinsella (UL) Computable and Experimental Economics November 5, 2008 11 / 14
![Page 17: NUI Maynooth Talk 7th Nov 2008](https://reader033.vdocuments.net/reader033/viewer/2022052618/54b3bfdc4a7959780a8b45e5/html5/thumbnails/17.jpg)
iCEEL
New Lab, New KBS
20 Computers, proper partitions, servers, software, etc
Mobile Lab (20 Laptops)
Trading Simulation Floor
Jan 2009
Stephen Kinsella (UL) Computable and Experimental Economics November 5, 2008 11 / 14
![Page 18: NUI Maynooth Talk 7th Nov 2008](https://reader033.vdocuments.net/reader033/viewer/2022052618/54b3bfdc4a7959780a8b45e5/html5/thumbnails/18.jpg)
iCEEL
New Lab, New KBS
20 Computers, proper partitions, servers, software, etc
Mobile Lab (20 Laptops)
Trading Simulation Floor
Jan 2009
Stephen Kinsella (UL) Computable and Experimental Economics November 5, 2008 11 / 14
![Page 19: NUI Maynooth Talk 7th Nov 2008](https://reader033.vdocuments.net/reader033/viewer/2022052618/54b3bfdc4a7959780a8b45e5/html5/thumbnails/19.jpg)
Social aspects of risky investments
4 ‘trustees’, 1 ‘trustor’ interact in an experimental environment
We alter access to trustees, & change participant’s information levelswith regard to the trustworthiness of these trustees
We think as we increase information about principal to agent, trust,and risky behaviour alters (author?) (2)
Obvious real world applications
Extra dimension: culture
Stephen Kinsella (UL) Computable and Experimental Economics November 5, 2008 12 / 14
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Social aspects of risky investments
4 ‘trustees’, 1 ‘trustor’ interact in an experimental environment
We alter access to trustees, & change participant’s information levelswith regard to the trustworthiness of these trustees
We think as we increase information about principal to agent, trust,and risky behaviour alters (author?) (2)
Obvious real world applications
Extra dimension: culture
Stephen Kinsella (UL) Computable and Experimental Economics November 5, 2008 12 / 14
![Page 21: NUI Maynooth Talk 7th Nov 2008](https://reader033.vdocuments.net/reader033/viewer/2022052618/54b3bfdc4a7959780a8b45e5/html5/thumbnails/21.jpg)
Social aspects of risky investments
4 ‘trustees’, 1 ‘trustor’ interact in an experimental environment
We alter access to trustees, & change participant’s information levelswith regard to the trustworthiness of these trustees
We think as we increase information about principal to agent, trust,and risky behaviour alters (author?) (2)
Obvious real world applications
Extra dimension: culture
Stephen Kinsella (UL) Computable and Experimental Economics November 5, 2008 12 / 14
![Page 22: NUI Maynooth Talk 7th Nov 2008](https://reader033.vdocuments.net/reader033/viewer/2022052618/54b3bfdc4a7959780a8b45e5/html5/thumbnails/22.jpg)
Social aspects of risky investments
4 ‘trustees’, 1 ‘trustor’ interact in an experimental environment
We alter access to trustees, & change participant’s information levelswith regard to the trustworthiness of these trustees
We think as we increase information about principal to agent, trust,and risky behaviour alters (author?) (2)
Obvious real world applications
Extra dimension: culture
Stephen Kinsella (UL) Computable and Experimental Economics November 5, 2008 12 / 14
![Page 23: NUI Maynooth Talk 7th Nov 2008](https://reader033.vdocuments.net/reader033/viewer/2022052618/54b3bfdc4a7959780a8b45e5/html5/thumbnails/23.jpg)
Social aspects of risky investments
4 ‘trustees’, 1 ‘trustor’ interact in an experimental environment
We alter access to trustees, & change participant’s information levelswith regard to the trustworthiness of these trustees
We think as we increase information about principal to agent, trust,and risky behaviour alters (author?) (2)
Obvious real world applications
Extra dimension: culture
Stephen Kinsella (UL) Computable and Experimental Economics November 5, 2008 12 / 14
![Page 24: NUI Maynooth Talk 7th Nov 2008](https://reader033.vdocuments.net/reader033/viewer/2022052618/54b3bfdc4a7959780a8b45e5/html5/thumbnails/24.jpg)
Collaboration!
Figure: caption
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References
[1] John H. Kagel and Alvin E. Roth. Handbook of ExperimentalEconomics. Princeton University Press, New Jersey, USA, 1997.
[2] A. R. Soetevent. Empirics of the identification of social interactions:An evaluation of the approaches and their results. Journal of EconomicSurveys, 20(2):193–228, 2006.
[3] K. V. Velupillai. Computability, Complexity and Constructivity inEconomic Analysis. Blackwell Publishing, 2005.
Stephen Kinsella (UL) Computable and Experimental Economics November 5, 2008 14 / 14