Chapter 1 Introduction to Macroeconomics  Learning Objectives I. Goals of Part I A. Introduce students to the main concepts in macroeconomics (Ch. 1) B. Introduce national income accounting and major economic magnitudes (Ch. 2) II. Section Goals A. Summarize the primary issues addressed in macroeconomics (Sec. 1.1) B. Describe the activities and objectives of macroeconomists (Sec. 1.2) C. Differentiate between the classical and Keynesian approaches to macroeconomics (Sec. 1.3) III. Notes to Eighth Edition Users: This chapter is little changed; the data were updated.