What This Document Is
This document is an answer key for Homework 3 of Applied Microeconomics (ECO 146) at Lehigh University, from the Spring 2014 semester. It provides detailed solutions to problems relating to production functions, cost minimization, and firm behavior in the short and long run. The homework focuses on applying microeconomic principles to a practical business scenario – Gump’s Shrimp – and a coffee shop, Saxbys.
Why This Document Matters
This answer key is valuable for students enrolled in ECO 146 who completed Homework 3. It allows students to check their understanding of key concepts like marginal product of labor, isocost functions, short-run and long-run cost curves, and least-cost input combinations. It’s most useful *after* a student has attempted the homework independently, as a tool for self-assessment and identifying areas where further review is needed.
Common Limitations or Challenges
This document is an answer key, not a learning tool. It *shows* the solutions, but doesn’t explain the underlying reasoning or steps to arrive at those solutions. Students relying solely on the answer key without engaging with the problem-solving process will likely struggle with similar problems on exams or in future coursework. It assumes prior knowledge of the concepts covered in the course.
What This Document Provides
The full document includes:
* Detailed solutions to six problems concerning Gump’s Shrimp, including isoquant and isocost analysis, short-run cost function derivation, and long-run cost minimization.
* Solutions to three problems related to Saxbys coffee shop, covering least-cost input combinations and the impact of fixed capital.
* Mathematical derivations of marginal product of labor, average total cost, average variable cost, and marginal cost functions.
* Analysis of the relationship between marginal product and marginal cost.
This preview does *not* include the full mathematical derivations or complete solutions to all problems. It is intended to give you an overview of the homework’s content and scope.