Evaluating Economic Models for Public Policy
A policy advisor is using an economic model to determine the single most efficient number of public wifi hotspots to install in a city. The advisor's initial model (Model X) makes a simplifying assumption about resident preferences which results in a definitive answer: 50 hotspots is the only efficient quantity, regardless of which neighborhoods bear the installation costs. However, a senior economist reviews the work and suggests that for a service like public internet, a person's willingness to pay for an additional hotspot is likely to decrease as their income falls. A revised model (Model Y), which incorporates this income effect, shows that the efficient number of hotspots could be anywhere from 30 to 70, depending on how the costs and benefits are distributed among different income groups.
Critique the initial simplifying assumption in Model X. Based on the information provided, which model's output (a single number from Model X or a range from Model Y) provides a more robust basis for a real-world policy decision, and why?
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CORE Econ
Introduction to Microeconomics Course
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Evaluating Economic Models for Public Policy