Our goal is to provide students with a textbook that is up to date and comprehensive in its coverage of legal and regulatory issues—and organized to permit instructors to tailor the materials to their particular approach. This book engages students by relating law to everyday events with which they are already familiar (or with which they are familiarizing themselves in other business courses) and by its clear, concise, and readable style. (An earlier business law text by authors Lieberman and Siedel was hailed “the best written text in …show more content…
Law has different meanings as well as different functions. Philosophers have considered issues of justice and law for centuries, and several different approaches, or schools of legal thought, have emerged. In this chapter, we will look at those different meanings and approaches and will consider how social and political dynamics interact with the ideas that animate the various schools of legal thought. We will also look at typical sources of “positive law” in the United States and how some of those sources have priority over others, and we will set out some basic differences between the US legal system and other legal systems.
1.1 What Is Law?
Law is a word that means different things at different times. Black’s Law Dictionary says that law is “a body of rules of action or conduct prescribed by controlling authority, and having binding legal force. That which must be obeyed and followed by citizens subject to sanctions or legal consequence is a law.” 
Functions of the Law
In a nation, the law can serve to (1) keep the peace, (2) maintain the status quo, (3) preserve individual rights, (4) protect minorities against majorities, (5) promote