I recently played the game Diner City. The game allows you to run a restaurant and compete with another one. You start with one employee and $50. From there you can decide what improvements you can make to the restaurant by making certain purchases. Most purchases increase revenue per customer while others add seats to the restaurant. You also get to see what your opponent is doing. The object of the game is to beat your competitor in revenue and sales.
When the game begins there is a scarcity of resources. Here the scarce resources would be money and employees. The game is also showing an example of working in a competition economy. As you accumulate more money, you can accumulate more employees and resources; increasing the speed of service and revenue per customer.