Inflation decodes to: money quietly losing buying power as prices rise. A ₹100 note in a drawer still reads "100" a decade later, but buys perhaps 60% of what it did. This silent tax hits everyone — but inside the stock market, it hits companies very unequally, and knowing who bleeds and who shrugs is the skill.
Who shrugs: companies with pricing power — Chapter 5 and Chapter 14 converging into their most practical use. When input costs rise 10%, the trusted brand raises prices 10% and customers grumble but pay. Margins survive; the company has effectively passed the silent tax on. This is why moat businesses are called inflation-resistant.
Who bleeds: companies squeezed between rising costs and prices they cannot raise — because competition is fierce (Chapter 15's brutal ponds), because customers are giant and powerful, or because a regulator caps prices. Their input bills climb; their selling prices can't follow; margins get crushed in the middle. Same inflation, opposite outcomes — visible in advance if you've judged pricing power honestly.
The currency seesaw. The rupee-dollar exchange rate is just the price of one money in another — and when it moves, entire sectors swap places. Rupee weakens (say ₹83 → ₹88 per dollar): every dollar an IT exporter or pharma company earns converts into more rupees — their revenue inflates without selling one extra unit. Meanwhile importers bleed: oil companies, airlines (fuel is dollar-priced), and any manufacturer importing components watch costs swell overnight. Rupee strengthens: the seesaw flips.
The two forces also intertwine: a weakening rupee makes imports (especially oil, India's biggest) costlier, which feeds inflation, which pressures the RBI toward higher rates — Chapter 18's gravity — which affects everything again. Macro forces never act alone; they form weather systems.
As with rates, the goal isn't prediction — it's knowing each holding's exposure before the weather changes: who earns in dollars, who spends in dollars, who can pass costs on, and who gets crushed in the middle.
Key Takeaway
Inflation is a tax that pricing power deflects onto customers — companies without it absorb the hit themselves. Currency moves reshuffle winners and losers along one clean line: who earns in dollars versus who spends in them. Know each holding's position on both maps.
Think About It
List three things you kept buying at full quantity despite price rises, and one you cut back on immediately. You've just mapped pricing power from the customer's side — the exact same map investors need.
Live Lab — The Exposure Map
Check India's latest inflation rate (CPI) and the current USD/INR rate — both visible via a quick search or on stockanalysis.com markets data. Then map two companies: screener.in/company/TCS/consolidated/ (dollar earner) and screener.in/company/INDIGO/consolidated/ (dollar spender — fuel). Write one line each: what does a 5% rupee fall do to their profits? You've just done real macro analysis.