Microeconomics
Revealed Preference Comparison Calculator
Compare the cost of a chosen bundle with an alternative at the same observed prices.
Inputs and results stay in this browser. Currency symbols are illustrative; use any consistent currency.
The alternative was affordable at the observed expenditure
Understand Revealed preference
One idea, three depths
Choose how deeply to explain Revealed preference
Revealed preference: Compare the cost of a chosen bundle with an alternative at the same observed prices.
Age 5Explain it to a 5-year-oldStart with a picture
Imagine using Revealed preference to answer this question: compare the cost of a chosen bundle with an alternative at the same observed prices? Enter Price of good X, Price of good Y, Chosen quantity of X, and 3 other inputs; the calculator shows Chosen bundle cost. Try changing one number and watch what happens to Chosen bundle cost. The answer tells you Chosen bundle cost.
Age 15Explain it to a 15-year-oldConnect it to the formula
If the alternative was affordable when the observed bundle was chosen, the choice reveals a preference for the observed bundle under standard assumptions. The rule is Revealed-preference gap = Cost of chosen bundle − cost of alternative bundle. Its input values are Price of good X, Price of good Y, Chosen quantity of X, Chosen quantity of Y, Alternative quantity of X, Alternative quantity of Y, and the main result is Chosen bundle cost. Try changing one number and watch what happens to Chosen bundle cost.
CollegeExplain it at college levelState the model precisely
This calculator evaluates a microeconomics relationship while holding unmodelled conditions constant. The implemented relation is Revealed-preference gap = Cost of chosen bundle − cost of alternative bundle, evaluated from Price of good X, Price of good Y, Chosen quantity of X, Chosen quantity of Y, Alternative quantity of X, Alternative quantity of Y to produce Chosen bundle cost. If the alternative was affordable when the observed bundle was chosen, the choice reveals a preference for the observed bundle under standard assumptions. The result depends on comparable definitions, units, populations and time periods. It estimates a relationship; it does not establish causation or replace current primary data.
The economic question
Compare the cost of a chosen bundle with an alternative at the same observed prices.
Why this relationship is useful
If the alternative was affordable when the observed bundle was chosen, the choice reveals a preference for the observed bundle under standard assumptions.
Inputs that must be comparable
- Price of good X (minimum 0.01).
- Price of good Y (minimum 0.01).
- Chosen quantity of X (minimum 0).
- Chosen quantity of Y (minimum 0).
- Alternative quantity of X (minimum 0).
- Alternative quantity of Y (minimum 0).
Use one market, firm, population and time period throughout; mixing definitions can make a correctly calculated number economically meaningless.
The model
Revealed-preference gap = Cost of chosen bundle − cost of alternative bundle
From inputs to output
The calculator combines Price of good X, Price of good Y, Chosen quantity of X, Chosen quantity of Y, Alternative quantity of X, Alternative quantity of Y and reportsChosen bundle cost together with Alternative bundle cost, Cost gap. Change one assumption at a time to identify what actually drives the estimate.
How to read Chosen bundle cost
Read the sign, magnitude, unit and period together. The result quantifies the relationship in “compare the cost of a chosen bundle with an alternative at the same observed prices”; it does not by itself prove that one input caused another.
Where interpretation can fail
Do not use the result when the input definitions, units or formula assumptions do not match the real situation. This is an educational model, not financial, investment, tax or policy advice; verify material decisions against primary data and professional guidance.
Supporting sourcesAcademic referencesPrimary standards, textbooks and complete citations
Standards, reading and academic references
Use the calculator as the worked interaction, then consult the primary standards and academic textbooks listed below. MW SysArc links to the original sources; the explanation on this page is original and does not reproduce them.
Principles of Economics 3e
Read the free OpenStax economics textbookCite this book
- APA 7
- Greenlaw, S. A., Shapiro, D., & MacDonald, D. (2022). Principles of economics 3e. OpenStax. https://openstax.org/books/principles-economics-3e/pages/1-introduction
- MLA 9
- Greenlaw, Steven A., et al. Principles of Economics 3e. OpenStax, 2022, https://openstax.org/books/principles-economics-3e/pages/1-introduction.
- Chicago author-date
- Greenlaw, Steven A., David Shapiro, and Daniel MacDonald. 2022. Principles of Economics 3e. Houston, TX: OpenStax. https://openstax.org/books/principles-economics-3e/pages/1-introduction.
OpenStax entries are free to read online. Follow the licence shown on each linked source before redistributing or adapting its content.
Reuse the page responsiblyCite this pageAPA, MLA, Chicago, Harvard, BibTeX and RIS
These formats cite this calculator page itself. They are separate from the academic references above, which support the mathematical method and terminology.
APA 7
MW SysArc. (2026, July 21). Revealed Preference Comparison Calculator. MW SysArc Tools. https://economics.mwsysarc.com/micro/revealed-preference-comparison
MLA 9
MW SysArc. “Revealed Preference Comparison Calculator.” MW SysArc Tools, 21 July 2026, https://economics.mwsysarc.com/micro/revealed-preference-comparison. Accessed 31 Aug. 2026.
Chicago 17
MW SysArc. “Revealed Preference Comparison Calculator.” MW SysArc Tools. Published July 21, 2026. Accessed August 31, 2026. https://economics.mwsysarc.com/micro/revealed-preference-comparison.
Harvard
MW SysArc (2026) ‘Revealed Preference Comparison Calculator’, MW SysArc Tools. Published 21 July 2026. Available at: https://economics.mwsysarc.com/micro/revealed-preference-comparison (Accessed: 31 August 2026).
BibTeX and RIS records
BibTeX
@misc{mwsysarc_revealed_preference_2026,
author = {{MW SysArc}},
title = {Revealed Preference Comparison Calculator},
howpublished = {MW SysArc Tools},
year = {2026},
url = {https://economics.mwsysarc.com/micro/revealed-preference-comparison},
note = {Published July 21, 2026; accessed August 31, 2026}
}RIS
TY - ELEC
AU - MW SysArc
TI - Revealed Preference Comparison Calculator
T2 - MW SysArc Tools
PY - 2026
DA - 2026-07-21
Y2 - 2026-08-31
UR - https://economics.mwsysarc.com/micro/revealed-preference-comparison
N1 - Published July 21, 2026
ER -Clear answers
Frequently asked questions
What does the Revealed preference do?
Compare the cost of a chosen bundle with an alternative at the same observed prices.
How does the Revealed preference work?
The calculator applies this formula: Revealed-preference gap = Cost of chosen bundle − cost of alternative bundle. If the alternative was affordable when the observed bundle was chosen, the choice reveals a preference for the observed bundle under standard assumptions.
What can I learn from the Revealed preference?
It helps you explore the relationship described by this tool: Compare the cost of a chosen bundle with an alternative at the same observed prices. Change one input at a time to observe how it affects the result.
Does MW SysArc receive or store what I enter?
No. The calculation runs locally in your browser. MW SysArc does not receive or store your calculation inputs.
How should I use the result?
Use the result as an estimate or educational aid. Check important financial, business or policy decisions with qualified sources and current data.
Last reviewed . Calculations tested .