Economic Terms – TISSNET Study Notes
(General Awareness & Current Affairs)
Goal – Understand the most common economic terms, why they matter, and how to compute them.
Format – Simple explanations → Key points → Worked example → Quick revision.
1. Why These Terms Matter for TISSNET
- Policy Questions – RBI, Finance Ministry decisions are framed around these indicators.
- Interview Context – You’ll be asked to explain, analyse or comment on any of these terms.
- Data‑Driven Answers – Having the formulas ready lets you provide precise, evidence‑based responses.
2. Key Economic Terms
| Term | Simple Explanation | Key Points |
|---|---|---|
| Gross Domestic Product (GDP) | Total value of all final goods & services produced within India in a year. | • Nominal uses current prices. • Real adjusts for price changes (inflation). |
| Gross National Product (GNP) | GDP + income earned by Indian residents outside India – minus income earned by foreigners inside India. | • Shows national income beyond borders. |
| Per‑Capita Income | National income (GDP or GNP) ÷ population. | • Indicator of average standard of living. |
| Inflation | Rise in the general price level over time. | • Measured mainly by CPI (Consumer Price Index). |
| Deflation | Fall in general price level. | • Rare in India but can hurt consumption. |
| CPI (Consumer Price Index) | Weighted average of price changes for a basket of consumer goods. | • Basis for cost‑of‑living adjustments. |
| WPI (Wholesale Price Index) | Weighted average of price changes at the wholesale level. | • Earlier used to gauge inflation; now CPI is preferred. |
| Price Index | Numerical measure of price level relative to a base year. | • Base year usually 100. |
| Monetary Policy | RBI’s actions (repo rate, reverse repo, CRR) to control money supply & inflation. | • Expansionary (low rates) → Stimulate growth. • Contractionary (high rates) → Tame inflation. |
| Fiscal Policy | Government’s use of tax & spending to influence economy. | • Expansionary (spending > revenue) → Boost demand. • Contractionary (revenue > spending) → Reduce deficit. |
| Fiscal Deficit | (Total expenditure – total revenue) excluding borrowings. | • 1% of GDP is the conventional target. |
| Fiscal Surplus | Excess revenue over expenditure. | • Rare in India; indicates healthy finances. |
| Debt‑to‑GDP Ratio | Total public debt ÷ GDP. | • Measures debt sustainability. |
| Current Account Balance | Net of exports & imports of goods, services, income, & transfers. | • Surplus = net inflow; deficit = net outflow. |
| PMI (Purchasing Managers’ Index) | Composite index of manufacturing & services activity. | • > 50 = expansion; < 50 = contraction. |
| Employment Rate | (Number of employed persons ÷ total workforce) × 100. | • Indicator of labour market health. |
| Unemployment Rate | (Number of unemployed persons ÷ total labour force) × 100. | • Lower is better. |
| Human Development Index (HDI) | Composite of life expectancy, education, and per‑capita income. | • Measures overall human development. |
Tip: Memorise “GDP → real vs nominal; CPI → inflation; fiscal deficit vs surplus; debt‑to‑GDP” – these are the most tested.
3. Worked Example – Calculating Real GDP
Problem:
In 2023, India’s nominal GDP was ₹240 trn. The GDP deflator (price index) for 2023 is 112 (base year 2018 = 100). What is the real GDP for 2023 in 2018‑price terms?
Formula
[ \text{Real GDP} = \frac{\text{Nominal GDP}}{\text{GDP Deflator}/100} ]
Calculation
[ \text{Real GDP} = \frac{240,\text{trn}}{112/100} = \frac{240}{1.12} = 214.29,\text{trn} ]
Interpretation
- The economy grew in real terms by (214.29 - (\text{previous real GDP})).
- Price level increased by 12% relative to 2018.
Why It Matters
- Real GDP shows true growth, eliminating the distortion of price changes.
- Analysts use real GDP growth to evaluate policy effectiveness.
4. Quick Revision Summary
| Concept | What it is | How to remember |
|---|---|---|
| GDP (Nominal vs Real) | Total output; Real adjusts for inflation | “Nominal uses current prices; Real uses base‑year prices.” |
| CPI | Consumer basket price index | “CPI → Cost of living.” |
| Inflation | CPI trend over time | “Inflation = price rise.” |
| Fiscal Deficit | Expenditure–Revenue (excluding borrowings) | “Deficit = spending > revenue.” |
| Monetary Policy | RBI rates & money supply | “Repo rate = lever for inflation.” |
| Debt‑to‑GDP | Public debt ÷ GDP | “Debt sustainability gauge.” |
| PMI | Composite of manufacturing & services | “>50 = growth.” |
| Employment vs Unemployment | Share of workforce employed / unemployed | “Higher employment = lower unemployment.” |
Mnemonic:
GDP, CPI, I