There are two ways to look at economic production in SC2. You can spend your time and money producing items that will do damage (e.g. units), or you can spend money on things that will increase your production rate (e.g. more barracks, hatcheries, etc).
Then there is a tech tree to factor in, how far up the tech tree should you go. It's all about understanding how far up the tech tree you need to go.
Say you are facing an opponent that is going to rush with level 1 units, if you know this, you can build defenses at choke points that will cost you much less than his units will cost to break through. At the same time you are rapidly climbing the tech tree to get more powerful units and spending less on the lower tier units.
On the other hand, if he has just enough units to bust through your defenses, it's game over.
That's how strategy comes into play in SC2. Often part of your early game strategy is figuring out how to disrupt the opponents supply chain (particularly along their critical path) while continuing to increase your own production capacity.
Long post - but in general your economic curves are not necessarily the same. Early expand, versus more units and pushing, etc.
There are two ways to look at economic production in SC2. You can spend your time and money producing items that will do damage (e.g. units), or you can spend money on things that will increase your production rate (e.g. more barracks, hatcheries, etc).
Then there is a tech tree to factor in, how far up the tech tree should you go. It's all about understanding how far up the tech tree you need to go.
Say you are facing an opponent that is going to rush with level 1 units, if you know this, you can build defenses at choke points that will cost you much less than his units will cost to break through. At the same time you are rapidly climbing the tech tree to get more powerful units and spending less on the lower tier units.
On the other hand, if he has just enough units to bust through your defenses, it's game over.
That's how strategy comes into play in SC2. Often part of your early game strategy is figuring out how to disrupt the opponents supply chain (particularly along their critical path) while continuing to increase your own production capacity.
Long post - but in general your economic curves are not necessarily the same. Early expand, versus more units and pushing, etc.