What is investment?

Investment is the act of committing money, time or other resources now so that they produce more value later. It means giving up present consumption or flexibility, and it carries the risk that the return is smaller than hoped. The central question is whether the expected gain is worth the cost and the risk.

How it works

An investment has a cost up front, a stream of returns over time and a degree of uncertainty about those returns. Returns can be reinvested, which makes them grow on themselves, and this compounding is the reason early investments can matter more than later ones.

Investments compete with each other and with consuming the money now, so their value is judged against the best alternative, which is the opportunity cost. Measures such as return on investment and payback period summarize whether one is worthwhile.

Example

Say a business spends 50,000 on a new machine that adds 15,000 of profit each year for five years. Total return is 75,000, a gain of 25,000 on the 50,000 committed, and the money is recovered in a little over three years. If the machine has only a 70% chance of working as planned, the expected return falls to about 52,500 and the decision is much closer. Illustrative numbers only.

In a game economy, a player invests when they spend currency on a mine, a farm or a skill that produces more currency later, and designers tune how soon it pays back.

How to model it in Machinations

Use a Pool for the capital, a Drain or Converter that spends it on the asset, and a Source or Converter that produces returns over time. Add a Gate for the chance of success. Play many times and chart the Pool to see the spread of final balances compared with leaving the money untouched.