ECON 101: Principles of Economics

Discover the role of "ceteris paribus" in economics, a foundational assumption simplifying analyses. Understand its application in variable isolation, policy analysis, and model building. Gain insights into how economists use this tool for clarity in complex scenarios.

Grasp the distinction between nominal and real exchange rates, using the yen and dollar as examples. Learn how these rates influence purchasing power in different economies. Understand their implications in the global trade landscape.

Unexpected inflation can shift wealth between lenders and borrowers. This phenomenon affects the real value of money repaid, disadvantaging the creditors. Additionally, businesses face operational expenses like menu costs during inflation adjustments.

Discover the power of the profit-maximizing rule in perfectly competitive markets. Unearth how setting price equal to marginal cost optimizes consumer and producer benefits. Grasp the significance of this rule for societal resource utilization.

Learn about the intricacies of opportunity cost and its broader implications. Delve into the balance between human and physical capital, understanding the risks of overinvestment. Grasp the Law of Diminishing Marginal Returns and its effects on national strategies.

Explore the differences between the Four-firm Concentration Ratio and the Herfindahl-Hirschman Index. Understand how they assess market concentration and dominance. Get insights into market power dynamics by comparing these two indices.