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Analyzing a Physical Economic Model
An economist in the late 19th century developed a hydraulic apparatus using interlinked levers and water-filled cisterns to demonstrate how a market economy functions. In this physical model, water represented the flow of goods and money, and the resulting water levels indicated prices. Analyze the primary strengths and weaknesses of using such a mechanical device to explain economic principles, particularly when compared to modern approaches that rely on mathematical equations and computer simulations.
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User Experience Design - Winter 23 @ UI Design in UI @ University of Michigan - Ann Arbor
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User Experience Design @ UI Design in UI @ University of Michigan - Ann Arbor
University of Michigan - Ann Arbor
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Equilibrium in Irving Fisher's Physical Model
Analyzing a Physical Economic Model
The transition to a coal-based economy during the Industrial Revolution was widely understood at the time to be a trade-off, where immediate, massive economic growth was accepted in exchange for known, long-term environmental damage.
Irving Fisher's physical model of an economy used water in cisterns to represent the quantity of goods and money, and a system of levers to represent consumer valuations. The flow of water between cisterns simulated market transactions, with the final water levels indicating equilibrium prices. Given this structure, what would be the most direct way to represent a sudden increase in the supply of a single commodity within this physical model?
Irving Fisher's 1891 hydraulic model used a physical apparatus to represent market mechanics. Match each component of Fisher's physical model to the economic concept it was designed to represent.
Purpose of Fisher's Hydraulic Model
Predicting Market Shifts with a Physical Model
The primary purpose of Irving Fisher's hydraulic economic model was to provide precise, quantitative forecasts for government and corporate policy-making.
A key limitation of using a physical hydraulic apparatus to illustrate market mechanics is its inability to easily represent certain complex economic phenomena. Which of the following economic concepts would be the MOST difficult to accurately simulate using a system of interconnected water tanks and levers meant to represent supply, demand, and prices?