Answer:
In order for "buying on the margin" to work in the long run, stock values have to rise.
Step-by-step explanation:
For stock buying to work in the long run, stock values must rise. This is because it will be necessary to buy them within the concept of speculation, where the buyer and the investor have the hope that this action will generate profits. However, the risk of this type of investment is very high and, therefore, if the shares assume low values, they will not compensate for the purchase in relation to the venture's risk.