South 고등학교 3학년 Practical Economics
Chapters: 5
1. Personal and national economic life
Economic problem solving · Interdependence · Trade in an open economy
- The Problem of Choice: Scarcity and Opportunity Cost – Our wants are unlimited but resources like money, time, land and workers are limited. This is scarcity, and it forces us to choose. The value of the next best option we give up is the opportunity cost. Economists study how people and societies make these choices. Every society must decide what, how and for whom to produce. Market, planned and mixed economies answer these differently, and a welfare state makes sure basic needs of all are met.
- International Trade – International trade is buying and selling goods and services across the boundaries of countries. Selling abroad is export; buying from abroad is import. It helps nations (foreign exchange, growth, jobs) and firms (profit, new markets). Exports and imports follow fixed steps and need many documents, such as the letter of credit and bill of lading. The WTO (1995) makes trade rules and works to cut trade barriers.
- International Trade: Basis, Balance, WTO and Ports – International trade is the exchange of goods and services between countries. It began with barter, grew along routes like the Silk Route, passed through the cruel slave trade and colonial trade, and expanded with industry. Countries trade because they differ in resources, population, development, foreign investment and transport. Balance of trade compares exports and imports. Trade can be bilateral or multilateral; free trade lowers barriers, while dumping sells goods abroad below cost. The WTO sets global rules, regional blocs group neighbours, and ports of many types act as gateways.
2. Income and consumption
Income · Rational consumption · Consumer rights
- Smart Ways to Manage Your Finances – Inflation makes prices rise, so the same money buys less. Money kept in a bank earns interest: simple interest is paid only on the original amount, while compound interest also earns interest on earlier interest, so it grows faster over time. A budget plans income into needs, wants and savings. Savings are kept safe; investments can grow but carry risk, and higher possible returns mean higher risk. Insurance shares risk among many people. Income tax is paid on income above a limit, at rates that rise with income.
- Consumer Education: How to Be a Smart Buyer – A consumer is anyone who buys or uses goods and services. Smart buying starts with sorting needs (must have) from wants (nice to have). Rational consumption compares benefit with cost, counts the opportunity cost (what else the money could buy) and stays inside a budget. Sellers use psychology: anchor prices (a big crossed-out price), bandwagon ('everyone has it'), rush (countdowns), 99-endings and celebrity ads; teens are a key target online. Clicking 'I agree' makes a contract, so read terms, auto-renewal, cancel and refund rules. Read labels: price per unit, expiry, ingredients, allergens, nutrition and safety marks. Consumers have rights (safety, information, choice, to be heard, redress, education, basic needs, clean environment) and duties (keep bills, check marks, complain properly, buy sustainably). Together, consumers shape culture: what we buy decides what gets made.
3. Saving, investing, insurance
Life-cycle saving · Investment choices · Insurance
- Saving: Growing Your Money Safely – Saving means keeping part of today's income for later. Good savers "pay themselves first": they put money aside before spending. Money kept in a bank deposit earns interest; with compound interest the interest also earns interest, so time makes savings grow faster. Inflation pushes prices up, so what matters is the real return: interest rate minus inflation. Savings accounts are easy to use but pay little; term (fixed) and recurring deposits pay more but lock the money. Deposit insurance protects deposits up to a limit. Over a lifetime people save while they work and use savings in old age.
- Investing Basics: Shares, Bonds, Funds and Risk – Saving keeps money safe; investing puts money to work so it can grow faster than prices rise. Shares make you part-owner of a company, bonds are loans that pay fixed interest, and funds are baskets of many shares or bonds. Higher possible return comes with higher risk. Spreading money across many investments (diversification) and staying invested for many years (compounding) are the two safest habits.
- Insurance: Principles and Types – Insurance spreads the loss of a few over many people who each pay a small premium into a common pool. It works on six principles: utmost good faith, insurable interest, indemnity, contribution, subrogation and causa proxima (plus mitigation of loss). The main types are life, health, fire and marine insurance.
4. Debt and credit
Excessive debt · Payment methods · Borrower duties
- Credit and Loans: Borrow Smart, Repay on Time – Credit means using someone else's money now and paying it back later with interest. The real price of a loan is interest plus all fees, shown as the effective annual rate (APR). Loans are repaid in instalments. Paying on time builds a good credit score, which makes future credit cheaper. Borrowing more than you can repay leads to a debt trap.
- Banking: Deposits, Loans and E-banking – A bank accepts deposits from savers and lends money to borrowers. It offers five main deposit accounts (savings, current, recurring, fixed and multiple option), moves money safely through bank drafts, lends through overdraft and cash credit, and now serves customers online through e-banking and digital payments such as UPI, NEFT, RTGS and IMPS.
5. Jobs and start-ups
Changing jobs · Workers' rights · Starting a business
- Future of Work – Technology changes jobs. Machines and AI take over tasks that repeat in the same way every day. At the same time new jobs appear, and jobs that need people skills, care and creative thinking grow. The best way to stay ready is to keep learning new skills all your life.
- Employment Law: The Rules of Working for Someone – Employment law is the set of rules for the relationship between an employer and an employee. An employment contract exists when a person does work, for pay, under the employer's direction (subordination). Contracts may be permanent, fixed-term, temporary through an agency, part-time or telework; a civil-law or freelance contract is not employment. Employees have rights (at least the minimum wage, limited hours, rest and paid leave, a safe workplace, equal treatment, freedom from harassment) and duties (careful work, following lawful instructions, loyalty, safety rules). Employers can organise work and discipline, within the law. Pay is gross before tax and social insurance and net after; the employer's total cost is higher. Trade unions negotiate collective agreements. A contract ends by resignation, dismissal with a valid reason and fair procedure, mutual agreement or the end of a fixed term.
- Entrepreneurship Development – Entrepreneurship is starting a new business by spotting a need, putting resources together and taking the risk. India needs entrepreneurs for jobs, new ideas and balanced growth. The process runs from knowing yourself to launching and growing. Start-up India (2016) supports new firms, funding comes from savings, angels, venture capital, banks and crowdfunding, and intellectual property rights protect new ideas, brands and creative work.