The Question-Specific Utility of Economic Models
Because economic models are intentional simplifications that never provide a complete picture of the economy, their utility is highly context-dependent. A model's effectiveness should be judged based on how well it answers the specific question it was designed to address. Consequently, a model that offers powerful insights into one economic problem may be unsuitable or misleading when applied to a different question.
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Ch.2 User-centered design process - User Experience Design - Winter 23 @ UI Design in UI @ University of Michigan - Ann Arbor
UI Design in UI @ University of Michigan - Ann Arbor
User Experience Design - Winter 23 @ UI Design in UI @ University of Michigan - Ann Arbor
UI @ University of Michigan - Ann Arbor
User Experience Design @ UI Design in UI @ University of Michigan - Ann Arbor
University of Michigan - Ann Arbor
Introduction to Microeconomics Course
The Economy 2.0 Microeconomics @ CORE Econ
Ch.2 Technology and incentives - The Economy 2.0 Microeconomics @ CORE Econ
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The Question-Specific Utility of Economic Models
An economist creates a simplified model of the market for gasoline. The model is built on the assumption that consumer driving habits are the primary factor influencing demand. It predicts that a 20% increase in gasoline prices will lead to a 15% decrease in gasoline consumption. However, real-world data collected after a 20% price hike shows only a 3% decrease in consumption. What is the most logical conclusion to draw about the economic model?
Evaluating a Simplified Housing Market Model
Evaluating a Predictive Economic Model's Failure
An economic model that is mathematically complex and accounts for a wide range of variables is inherently more useful than a simpler model, regardless of how well each model's predictions align with observed real-world outcomes.
An economist has developed four different simplified models to explain various economic phenomena. For each model, a key prediction has been compared against real-world data. Match each outcome with the most appropriate conclusion about the model's underlying assumptions.
An economist wants to determine if a new simplified model accurately explains consumer behavior in the smartphone market. Arrange the following steps in the logical order they should be performed to assess the model's validity.
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An economist develops a model to predict the impact of a new public transportation line on local small business revenue. The model is built on the key assumption that increased foot traffic directly translates into a proportional increase in sales. The model predicts a 15% average increase in revenue for businesses near the new line. After one year, real-world data shows an average revenue increase of only 4%. Given this outcome, what is the most professionally sound judgment regarding the model?
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An economist develops a model to predict how a 10% increase in the national minimum wage will affect the unemployment rate among teenagers. The model includes factors like the average cost of labor, the number of available low-skill jobs, and teenage population demographics. A critic dismisses the model, stating it is useless because it completely ignores the impact of international trade agreements on the overall economy. Based on the principle that a model's value is determined by its specific purpose, how should the critic's argument be evaluated?
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An economic model that accurately predicts the overall inflation rate for the next five years is necessarily a good model for determining the specific impact of a new sales tax on a single industry.
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A team of urban planners develops a sophisticated computer model to predict traffic flow and congestion on city highways. The model incorporates variables such as the number of lanes, average vehicle speed, time of day, and accident rates. A city council member suggests using this exact model to determine the optimal location for a new hospital. Which of the following statements provides the most accurate analysis of this suggestion?
An economist develops a model to predict the short-term (next 6 months) impact of a central bank's interest rate changes on consumer spending for large appliances. The model, which only considers the interest rate and average disposable income, has accurately predicted this specific spending category for the past two years. A financial journalist criticizes the model, arguing it is fundamentally flawed because it omits crucial variables like long-term consumer confidence and international trade balances. Which of the following statements provides the most robust evaluation of the journalist's criticism?