The 4th edition illustrates this concept through practical examples, such as the consumption of dumplings.
The user's query might be for a book called "Economics From The Ground Up" by J. Bradford DeLong or something else. Let's search for "Economics From The Ground Up" with "4th edition" and "Cengage". 0 is flashcards, not the book. Result 1 might be a Google Books preview. Let's open it. book is simply "Economics" by Arnold, not "Economics From The Ground Up".