Nigeria's free digital learning hub. Videos, lecture notes, practice questions and leaderboards aligned with CCMAS, NBTE, NCCE, WAEC, NECO, IJMB and JAMB curricula.
Loading
Nigeria's free digital learning hub. Videos, lecture notes, practice questions and leaderboards aligned with CCMAS, NBTE, NCCE, WAEC, NECO, IJMB and JAMB curricula.
This is the complete lecture note for ECO 101 PRINCIPLES OF ECONOMICS I. You can read it online below, open it in the full viewer, or download the PDF for offline study. It pairs with the course's video lectures, so you can read and watch together.
LA-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS
LA-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS Course code: ECO 101 Course title: PRINCIPLES OF ECONOMICS I Course credit load: 2 unit Series 1: Nature, Scope, and Methodology of Economics Series 2: Historical Development of Economic Thought Series 3: Demand and Supply Analysis Series 4: Production Functions and the Firm Series 5: Pricing of Factors and Market Structures Series 1: Nature and Methodology of Economics Part 1: The nature and scope of economics • 1.1.1 Definition of economics • 1.1.2 Basic economic problems: scarcity and choice • 1.1.3 Scale of preference and opportunity cost • 1.1.4 Major areas of specialisation in economics Part 2: Methodology of economics • 1.2.1 Positive and normative economics • 1.2.2 The scientific method in economics • 1.2.3 Models and assumptions in economic analysis • 1.2.4 Partial equilibrium analysis Part 3: Economics as a social science • 1.3.1 Relationship of economics with other social sciences • 1.3.2 Limitations of economics as a science • 1.3.3 Practical relevance of economics in everyday life Introduction Economics is often described as the study of how people and societies make choices in the face of scarcity. Every day, individuals, firms, and governments are confronted with decisions about allocating limited resources to meet competing needs. Understanding the nature and
LA-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS methodology of economics provides the foundation for analysing these decisions and appreciating the relevance of economics in both personal and societal contexts. This Series sets the stage for the entire course by introducing you to the basic problems, scope, and methods of economic inquiry. The aim of this Series is to familiarise you with the fundamental nature of economics, its scope as a social science, and the methodologies economists use to study and explain economic behaviour. By the end of this Series, you will be able to define key concepts, explain the basic problems of scarcity and choice, and describe how economists apply models and methods to analyse real-world issues. We shall commence this Series by examining the nature and scope of economics, including its definition, basic problems, and areas of specialisation. Next, we will move on to the methodology of economics, where we will consider positive and normative approaches, the scientific method, and the role of models and assumptions. Finally, we will wrap up by discussing economics as a social science, highlighting its relationship with other disciplines, its limitations, and its practical relevance in everyday life. Series Learning Outcomes Upon completing this Series, you should be able to: define economics clearly and explain its scope as a social science, describe the basic economic problems of scarcity, choice, scale of preference, and opportunity cost, identify and outline the major areas of specialisation within economics, distinguish between positive and normative economics, explain how economists apply the scientific method, models, and assumptions in economic analysis, demonstrate the use of partial equilibrium analysis in examining economic behaviour, analyse the relationship between economics and other social sciences, evaluate the limitations of economics as a science, and discuss the practical relevance of economics in everyday life. 1.1 The Nature and Scope of Economics Economics provides a framework for understanding how individuals, firms, and societies make decisions about scarce resources. This Part introduces you to the meaning of economics, its basic problems, and the scope of its application. By studying this section, you will gain clarity on why economics is often described as both a science and a social discipline. ---
LA-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS 1.1.1 Definition of economics Economics is the study of how people and societies allocate scarce resources to satisfy unlimited wants. The central idea is that resources such as land, labour, and capital are limited, while human needs and desires are virtually endless. Economists therefore analyse choices, trade-offs, and the consequences of decisions. Fill in the blank: Economics is the study of how people allocate ______ resources to satisfy unlimited wants. 1.1.2 Basic economic problems: scarcity and choice Scarcity refers to the limited availability of resources relative to the unlimited wants of individuals and societies. Because of scarcity, choices must be made about what to produce, how to produce, and for whom to produce. Choice is the act of selecting one option over another due to scarcity. Every choice involves a trade-off, meaning that selecting one option requires giving up another. Fill in the blank: Scarcity forces individuals and societies to make ______ about resource use. 1.1.3 Scale of preference and opportunity cost Scale of preference is the ranking of needs and wants in order of importance. Since resources are limited, individuals and societies prioritise certain needs over others.
LA-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS Opportunity cost is the value of the next best alternative forgone when a choice is made. It highlights the cost of choosing one option in terms of what is sacrificed. Fill in the blank: Opportunity cost is the value of the next best ______ forgone when a choice is made. 1.1.4 Major areas of specialisation in economics Economics is divided into several areas of specialisation, each focusing on different aspects of resource allocation and decision-making. • Microeconomics: Studies individual units such as households, firms, and markets. • Macroeconomics: Examines the economy as a whole, including national income, inflation, and unemployment. • Development economics: Focuses on issues of growth, poverty, and inequality in developing countries. • International economics: Analyses trade, finance, and global economic relations.
LA-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS • Public finance: Studies government revenue, expenditure, and fiscal policy. Fill in the blank: Microeconomics studies individual units such as households and ______. Pilot questions 1.1 1.Which of the following best defines economics? a) The study of unlimited resources b) The study of how scarce resources are allocated c) The study of human psychology d) The study of political systems 2.What is the central problem of economics? a) Inflation b) Scarcity c) Employment d) Technology 3.Which of the following is an example of opportunity cost? a) Buying a textbook instead of going to the cinema b) Reading a novel for leisure c) Saving money in a bank account d) Attending a lecture on economics 4.Which branch of economics studies households and firms? a) Macroeconomics b) Microeconomics c) Development economics d) International economics
LA-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS 5.Which of the following is not one of the three fundamental economic questions? a) What to produce? b) How to produce? c) Where to produce? d) For whom to produce? 1.2 Methodology of Economics The methodology of economics provides the tools and approaches that economists use to study and explain economic behaviour. It helps us distinguish between different types of analysis, understand how theories are built, and appreciate the role of models in simplifying complex realities. In this Part, we will explore positive and normative economics, the scientific method, the use of models and assumptions, and partial equilibrium analysis. --- 1.2.1 Positive and normative economics Positive economics refers to the branch of economics that deals with objective analysis of facts and cause-and-effect relationships. It answers questions such as “What is?” or “What will happen if…?” without making value judgements. Normative economics involves value-based statements and recommendations. It addresses questions such as “What ought to be?” and often reflects opinions about fairness, justice, or policy preferences. Fill in the blank: Positive economics deals with objective analysis, while normative economics involves ______ judgements.
LA-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS --- 1.2.2 The scientific method in economics The scientific method in economics is a systematic approach to studying economic phenomena. It involves observation, formulation of hypotheses, testing through data, and drawing conclusions. Economists use this method to ensure that their findings are logical, consistent, and evidence-based. Fill in the blank: The scientific method in economics involves observation, hypothesis, testing, and ______.
This is the opening of the note. Read the full note or download the PDF to continue.
