With the number of side business is beginning to increase many people are purchasing items in bulk and then selling them off at a slightly higher price in order to generate a profit. However would many people doing this there's a lot of competition within the market currently and this can greatly affect the amount of business that you get and also the amount of sales that you make. Also there's the added risk of purchasing an item in advance only do have a consumer not purchase the item or for the demand of the item not to be very high. What ideas are there to manage demand when it comes to purchasing items in order to ensure that they are not left over or that they are not sold which could result in losses to the business?