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Planning

Planning for economic shocks: scenario planning for small businesses in Sri Lanka

Gridwerk · October 11, 2026

Sri Lankan business owners don't need to be told that the economy can change fast. In recent years, many have lived through sharp moves in the exchange rate, steep rises in costs, shortages, changes in taxes and interest rates, and swings in demand, sometimes several at once.

Nobody can predict the next shock. But that's exactly why it's worth planning for it. The aim of scenario planning is to understand, in advance, how your business would be affected by a range of possible futures, and to decide now what you'd do, so that when something happens you're acting on a plan instead of reacting in a panic.

What I want to do here is walk through a simple four-step way of doing this for a small business, with numbers, so it feels practical instead of theoretical.

Why forecasts fail, and why that's fine

A forecast picks one future and plans for it. That's useful for budgeting, and it has a weakness: the future rarely turns out to be the one in the forecast, and big shocks are almost by definition the things forecasts don't include.

Scenario planning takes a different approach. It accepts that you can't know which future will arrive, and asks a more answerable question: across a range of plausible futures, where is my business fragile, and where is it strong? It's a way of holding uncertainty honestly, instead of replacing it with a single number that feels certain and isn't.

Does that make sense? Think about how a careful driver handles a road they don't know. They can't predict exactly what's around the next bend. So they keep a safe distance, slow down where the road narrows, and already know what they'd do if a vehicle pulled out. They're prepared for a range of things without knowing which will happen. Scenario planning is that habit, applied to a business.

Step 1: Find what you're exposed to

Start by listing the outside forces your business depends on. For most Sri Lankan small businesses, a handful matter most.

The exchange rate. Do you import goods, materials or equipment? Are any of your costs priced in dollars? Do you earn any foreign currency, from exports or tourists?

Input costs. Fuel, electricity, raw materials, packaging, rent.

Demand. Who are your customers, and what would make them buy less? A fall in household incomes, fewer tourists, a slowdown in a particular industry you sell to.

Credit and interest rates. Do you have loans with variable rates? Do your customers depend on credit to buy from you?

Tax and regulation. Changes in VAT, import duties, or rules affecting your sector.

Key relationships. A single large customer, a single supplier, a single key employee.

For each, note how much of your business it touches. If 60% of your cost of goods is imported, the exchange rate is a major exposure. If your largest customer is 40% of revenue, that customer is.

It helps to see how one outside change travels through a business. A fall in the rupee raises the cost of imported goods. Higher costs shrink the margin on every sale. A thinner margin means less profit and less cash. And less cash means less room to absorb the next shock. Following the chain link by link is how you see which shocks would hurt most.

Step 2: Model a few scenarios

Pick two or three scenarios that would hurt, and work through what they'd do to your numbers. Keep them plausible and specific.

Let's take the retailer we use across these guides. It sells LKR 2 million a month, its goods cost LKR 1.2 million, and its gross margin is 40%. Say 60% of its goods are imported, so LKR 720,000 of its monthly cost of goods depends on the exchange rate.

Scenario: the rupee falls 10% against the currencies it buys in. Imported costs rise by LKR 72,000 a month. If prices stay the same, gross profit (sales minus the direct cost of what was sold) falls from LKR 800,000 to LKR 728,000, and the gross margin from 40% to 36.4%. Overheads (the running costs, like rent and salaries, that don't belong to any one sale) of LKR 650,000 haven't changed, so monthly profit falls from LKR 150,000 to LKR 78,000, almost halved, by a single move in a number the owner doesn't control.

To restore the 40% margin, prices would need to rise by about 6%, to around LKR 2.12 million of sales for the same volume. Whether customers would accept that is the next question, and it's much easier to think about calmly now than in the week the rupee moves.

Run two or three of these: a cost spike, a fall in demand, the loss of your biggest customer. For each, see what happens to profit and, just as importantly, to cash, using your cash flow forecast (a prediction of your bank balance, week by week or month by month).

Step 3: Decide your responses in advance

For each scenario, write down what you'd do, and when. The "when" matters: decide the trigger in advance, so you don't spend weeks hoping things improve.

If imported costs rise more than 5%, review prices within two weeks and raise them on the most affected lines.
If sales fall below the low-case forecast for two months running, freeze hiring and reduce stock orders.
If the largest customer delays payment beyond 60 days, stop further credit until the account is current.

Pre-deciding these responses removes much of the stress when something happens, because the thinking has already been done.

Step 4: Build buffers

Scenarios usually show that a few buffers would make the business much better able to absorb most shocks.

A cash reserve. A few months of overheads in the bank, kept for emergencies. It's the single most useful buffer, because it buys time to respond to almost anything.

Diversified customers. No single customer large enough to sink the business if they leave or stop paying.

More than one supplier for key inputs, ideally including a local one for imported lines.

Flexible costs where possible. Costs that can be reduced quickly, like some marketing, temporary staff or rented equipment, are easier to adjust in a downturn than long fixed commitments.

Pricing that can move. Customers who are used to regular, modest price reviews accept changes more easily than customers who've seen the same price for years.

Three ways of relating to risk

There's a useful way of describing how people relate to things that could go wrong. The first stage is optimism that hasn't yet been tested: it won't happen to us, or it won't happen again. The second comes after a real shock, and it's a kind of fatalism: anything could happen, so planning is pointless. Many Sri Lankan owners have felt that one in recent years, for good reason.

The third holds both the reality of the risk and the possibility of acting well anyway. It accepts that the future can't be known, and still prepares: buffers, responses decided in advance, an honest view of where the business is fragile. That's the stage scenario planning is for. Its value comes precisely from the fact that certainty isn't available.

Look for catalysts too

Scenario planning isn't only about threats. The same thinking applies to changes that could help: a new road that brings customers past your door, a recovery in tourist arrivals, a competitor leaving the market, a change in regulation that opens a new opportunity. Note them, and decide what you'd do to be ready, because the businesses that benefit most from good changes are usually the ones that saw them coming.

How Gridwerk helps

Identifying the economic forces your business depends on, modelling scenarios against your numbers, and building the response plan and buffers is part of our Forecasting and Market Research work. If the last few years have taught you how fast things can change, start with the free diagnostic. It's eighteen questions, about seven minutes, and then we call you to go through the rest.

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