The WGU D089 Principles of Economics Exam document provides comprehensive coverage of key economic concepts and questions, complete with correct answers, useful for students preparing for the latest version of the exam. This resource is designed to help students achieve a strong understanding of foundational economic principles, and has been graded A+ for accuracy and relevance as of 2025.
Among the topics covered, the exam addresses common issues with measuring price levels using a fixed basket of goods, specifically substitution bias and quality/new goods bias. It also explores the historical inflation rate in the U.S., typically ranging from 2% to 4% over the past two decades, and discusses the implications of inflation on lenders and the mechanics of indexed payments.
The document delves into different forms of unemployment, highlighting how cyclical unemployment fluctuates with the business cycle, and noting that the unemployment rate never reaches zero. It also explains how economists use a basket of goods to measure price levels and the Consumer Price Index (CPI) as a key inflation indicator.
Furthermore, the exam covers demand schedules and the factors that cause shifts in demand curves, such as changes in consumer income and preferences. It describes the law of supply and assumptions about constant variables affecting supply, and discusses market reactions to negative externalities and the role of government intervention.
Students will find insights into cost concepts, including explicit and implicit costs, the role of fixed inputs in the short run, and the nature of fixed costs. This document serves as a crucial study guide for mastering the principles of economics and excelling in the WGU D089 exam.
