Economic Terms – Study Notes
Program: Kerala Police Constable
Subject: General Awareness & Current Affairs
Topic: Economic Terms
These notes are designed for quick reading, easy recall, and exam‑ready revision.
1. Simple Explanation
Economics is the study of how societies use limited resources to produce goods and services and distribute them among people.
Key economic terms help us understand the state of the economy, government actions, and market behaviour.
2. Key Economic Terms & Definitions
| Term | Simple Explanation | Key Points (What You Need to Remember) |
|---|---|---|
| Gross Domestic Product (GDP) | Total value of goods & services produced within a country in a year. | • Measures economic size. • Growth rate = percentage change year‑on‑year. • Used to gauge health of economy. |
| Gross National Product (GNP) | GDP + income earned by residents abroad – income earned by foreigners domestically. | • Includes national income from overseas. • Less used in India. |
| Inflation | Sustained rise in general price level. | • Measured by CPI. • Causes purchasing‑power loss. |
| Deflation | Sustained fall in general price level. | • May signal recession. • Can increase real debt burden. |
| Consumer Price Index (CPI) | Weighted average of prices paid by consumers for a basket of goods. | • Key inflation gauge. • CPI ↑ → inflation. |
| Producer Price Index (PPI) | Weighted average of prices received by producers for goods. | • Pre‑consumer indicator. • PPI ↑ can lead to CPI rise. |
| Fiscal Policy | Government decisions on spending & taxation. | • Expansionary (spend↑, tax↓) → stimulate economy. • Contractionary (spend↓, tax↑) → curb inflation. |
| Monetary Policy | Central bank actions on money supply & interest rates. | • RBI sets repo, reverse repo rates. • Tightening → higher rates, lower inflation. |
| Interest Rate | Cost of borrowing money. | • Nominal vs. real rates. • Influences investment & consumption. |
| Budget Deficit / Surplus | Difference between government revenue and expenditure. | • Deficit = spend > revenue. • Surplus = revenue > spend. |
| Public Debt | Total amount owed by the government. | • Expressed as % of GDP. • Affects credit rating. |
| Tax | Mandatory levy on income, consumption, property. | • Types: income tax, GST, excise, etc. |
| Subsidy | Financial assistance to lower the cost of goods/services. | • E.g., fuel subsidy, food grain subsidy. |
| Gross National Income (GNI) | Total income earned by residents of a country. | • GNI = GNP + net income from abroad. |
| Exchange Rate | Value of one currency against another. | • Fixed vs. floating. • Affects trade balance. |
| Trade Balance | Difference between exports and imports. | • Surplus > 0 → exports > imports. • Deficit < 0 → imports > exports. |
| Balance of Payments (BOP) | Records all transactions between residents & rest of world. | • Current account + capital account + financial account. |
| Liquidity | Ease with which an asset can be converted to cash. | • High liquidity = low risk. |
| Inflation Targeting | RBI’s strategy to keep inflation within a band (e.g., 4 ± 2 %). | • Uses repo rate, open‑market operations. |
| Goods & Services Tax (GST) | Unified indirect tax on production & consumption. | • Replaces multiple state & central taxes. • 3‑tier structure (CGST, SGST, IGST). |
| Capital Formation | Net increase in productive capital (machinery, infrastructure). | • Indicator of potential growth. |
| Employment Rate | % of labour force that is employed. | • Unemployment rate = 100 – employment rate. |
| Real GDP | GDP adjusted for inflation. | • Shows true growth. |
| Nominal GDP | GDP measured at current prices. | • Inflated by price changes. |
| Leading Indicators | Economic variables that predict future activity. | • Stock market indices, new orders, etc. |
| Lagging Indicators | Variables that confirm trends after they occur. | • Unemployment, inflation, GDP. |
3. Worked Example
Problem
The CPI for January 2025 is 300. In January 2026 it rises to 315.
Calculate the Annual Inflation Rate.
Solution
-
Formula
[ \text{Inflation Rate} = \frac{\text{CPI}{\text{current}} - \text{CPI}{\text{previous}}} {\text{CPI}_{\text{previous}}} \times 100% ] -
Plug in
[ \text{Inflation Rate} = \frac{315 - 300}{300} \times 100% = \frac{15}{300} \times 100% = 5% ] -
Interpretation
A 5 % inflation rate indicates that, on average, prices increased by 5 % over the year.
4. Quick Revision Summary
| Term | Symbol / Key Value | Typical Use in Exam |
|---|---|---|
| GDP | – | Growth rate, real vs nominal |
| CPI | – | Inflation % |
| PPI |