Economic Terms – Study Notes for Nagaland TET (General Awareness & Current Affairs)
Why it matters?
The TET exam tests not only subject‑specific knowledge but also a candidate’s awareness of basic economic concepts that shape policy, growth, and everyday life. Mastering these terms will help you answer questions on national & global economics, budget-related questions, and policy debates.
1. Simple Explanation
| Term | What it means in plain English |
|---|---|
| Gross Domestic Product (GDP) | Total value of all goods and services produced inside a country in a year. |
| Gross National Product (GNP) | GDP + value of goods/services produced by nationals abroad – minus value produced by foreigners inside the country. |
| Inflation | General rise in price levels; measured by the Consumer Price Index (CPI). |
| Deflation | General fall in price levels. |
| Fiscal Policy | Government’s use of taxes and spending to influence the economy. |
| Monetary Policy | Central bank’s control of money supply & interest rates to manage inflation & growth. |
| Supply & Demand | Basic forces determining price & quantity of goods. |
| Opportunity Cost | Value of the next best alternative foregone when a choice is made. |
| Comparative Advantage | Ability of a country to produce a good at a lower relative opportunity cost than another. |
| Absolute Advantage | Ability of a country to produce more of a good with the same resources as another. |
| Fiscal Deficit | Government’s total expenditure exceeds its total receipts (excluding borrowings). |
| Current Account Deficit | Total imports of goods, services, income & transfers exceed exports. |
| Balance of Trade | Difference between value of exports and imports of goods. |
| Exchange Rate | Price of one currency expressed in terms of another (e.g., 1 USD = 140 INR). |
| Inflation Target | Central bank’s explicit goal for inflation (e.g., 4 ± 2 %). |
| Subsidy | Government financial help for a specific sector or group. |
| Tariff | Tax on imported goods to protect local industry or raise revenue. |
| Gross National Income (GNI) | Total income earned by residents of a country, including foreign earnings. |
2. Key Points to Remember
| Category | Important Points |
|---|---|
| GDP & GNP | • GDP = C + I + G + (X‑M) (Consumption, Investment, Government spending, Net exports). • GNP adds net factor income from abroad. |
| Inflation | • CPI tracks price changes of a basket of consumer goods. • Core CPI excludes volatile food & fuel. |
| Fiscal Policy | • Expansionary (low taxes, high spending) → ↑aggregate demand. • Contractionary (high taxes, low spending) → ↓aggregate demand. |
| Monetary Policy | • Reserve Bank of India (RBI) uses repo rate, reverse repo, cash reserve ratio (CRR). • Lower rates → cheaper borrowing → stimulate growth. |
| Supply & Demand | • Equilibrium price where quantity demanded = quantity supplied. • Shifts caused by price changes, consumer preferences, technology, costs. |
| Opportunity Cost | • Always consider what you give up when you choose something else. |
| Comparative Advantage | • Key to trade: countries export goods they produce most efficiently. |
| Fiscal Deficit | • Measured as % of GDP. • A large deficit may lead to inflation if financed by printing money. |
| Current Account Deficit | • Indicates a country borrows from abroad to finance imports. |
| Exchange Rate | • Fixed vs floating regimes. • Depreciation makes exports cheaper, imports expensive. |
| Subsidies & Tariffs | • Subsidies lower production costs; tariffs raise import costs. |
3. Worked Example
Question:
The annual CPI for Delhi in 2024 is 152.3. The CPI in 2023 was 148.0. Calculate the inflation rate for Delhi from 2023 to 2024, and interpret its meaning.
Steps
-
Formula for inflation rate
[ \text{Inflation Rate (%)} = \frac{\text{CPI}{\text{new}} - \text{CPI}{\text{old}}}{\text{CPI}_{\text{old}}} \times 100 ] -
Insert values
[ \text{Inflation} = \frac{152.3 - 148.0}{148.0} \times 100 = \frac{4.3}{148.0} \times 100 ] -
Compute
[ \frac{4.3}{148.0} \approx 0.02905 ] [ 0.02905 \times 100 \approx 2.91% ] -
Result
Inflation rate = 2.91 % for Delhi between 2023 and 2024.
Interpretation
- Prices of consumer goods in Delhi rose, on average, by ~3 % from 2023 to 2024.
- This is within the RBI’s 4 ± 2 % inflation target (if it were 3‑6 % range).
- A moderate rise suggests healthy demand but warns against overheating.
4. Quick Revision Summary
| Concept | Take‑away |
|---|---|
| GDP | Total economic output; broken into C+I+G+(X‑M). |
| GNP | GDP + net income from abroad. |
| Inflation | CPI ↑ → inflation; CPI ↓ → deflation. |
| Fiscal Policy | Taxes & spending → affect demand. |
| Monetary Policy | Repo rate, CRR, reverse repo → control money supply & inflation. |
| Supply & Demand | Equ |