[Summary]
Economies of scale are structures in which unit costs decrease as scale increases.
What makes economies of scale more likely to fail is not the lack of knowledge itself, but the fact that hasty decisions are later justified.
In actual investment, we first start by looking at the room for improvement in the profit margins of large companies. However, it cannot be overlooked that expanding scale does not necessarily lead to profits.
In this article, we will organize economies of scale not as "knowledge" but as a step to check before buying or selling. Don't rush to conclusions, read according to your financial amount and time horizon.
First, divide based on economies of scale.
When looking at economies of scale, first determine what you want to judge. The information you need will change depending on whether you want to know the meaning, confirm before buying or selling, or review your current holdings.
Especially for beginners in investing, the easier the words are, the more they tend to take them as a conclusion. Economies of scale are not the only factor in determining decisions. If you want to check it, it is more realistic to look at it in conjunction with fund management, holding period, and opposing materials.
Situations where economies of scale can lead to failure
If we look at economies of scale as a pattern of failure, we must first make narrow assumptions. It is important not to mix up whether you are talking about the market as a whole, individual stocks, NISA or long-term funds.
Checking the following points will make things a lot easier.
| Axis to check | What to look for in terms of economies of scale |
|---|---|
| purpose | What do you use to judge? |
| Time axis | Which is closer to short-term trading, long-term holding, or NISA? |
| basis | Which one is more important: price, business performance, interest rates, exchange rates, or psychology? |
| risk | When things go the other way, where should you look again? |
| action | Will it lead to buying, selling, or doing nothing? |
Points that can easily cause trouble in making decisions
Economies of scale stumble not only when you lack knowledge. In fact, there are situations where we interpret something conveniently because we know a little bit about it.
- Don't decide whether to buy or sell the moment you see economies of scale.
- Do not mix your own holding period with a time horizon that suits economies of scale.
- Don't increase your position to recoup your losses
- Don't make a decision just based on SNS or rankings.
The important thing here is not to settle on a single correct answer based solely on economies of scale. In investment, the meaning of the same material changes depending on the market, holding period, and amount of funds. When in doubt, prioritize confirmation over conclusion.
Checklist before buying and selling
Before using economies of scale as a deciding factor, check at least these five things.
- Can you explain in one sentence the purpose of looking at economies of scale?
- Have you confirmed one or more countermeasures or failure conditions?
- Are you investing your living funds or money that will be used soon?
- Have you decided in advance the criteria for cutting losses, taking profits, and continuing to hold stocks?
- Are you making judgments based only on social media or short headlines?
Checklists are simple, but they prevent you from adding reasons after making a decision. The purpose of identifying economies of scale is not to move faster, but to reduce unnecessary errors in judgment.
Summary
Economies of scale are an ingredient for organizing investment decisions. Even if you read it as a failure pattern, treating it as a standalone buy/sell signal will lead to poor judgment.
The points to keep in mind are as follows.
- Determine the purpose of looking at economies of scale first
- Do not mix time axis and amount of funds
- Check not only good materials but also negative materials
- When using NISA and long-term funds, consider how to handle losses
- When in doubt, reduce your position or postpone it.
The more knowledge you have, the safer it seems, but in the market it can become dangerous if you use it incorrectly. It is realistic to treat economies of scale as a tool to pause before buying or selling, rather than a word that forces you to make a hasty decision.