Another factor that influences the demand for a product is the prices of related goods. For example, if the price of an apple falls for one particular season then you can expect the customers to buy more apples during that time frame even if they are used to buying banana. In this regard, the banana industry suffers because the customers buy the apples because of the low price.
Still another determinant of demand is the shifting taste of the market. Sometimes, there are trends in the market the drives the demand of some products up while sometimes it would adversely affect the demand in the market. The taste of individuals themselves can reflect on the overall demand of the market. If some customers prefer chocolate more than coffee then you can expect the demand of chocolate to be a lot more significant compared to coffee.
Your expectations in the future are also likely to affect the demand for a particular good or service right now. For example, if you are expecting to earn a lot of money in the near future then you will most likely be more inclined to spend today. On the other hand, if you expect to encounter several financial difficulties in the near future then your demand for products and services then you are likely to save your money right now.
Even the number of buyers in the market has will have an overall effect on the demand because they will drive up the production of these goods. The prices of these goods will also be dependent on the demand