During the introduction stage of the product life cycle, promotional expenditures are made to stimulate consumer desire for an entire product class rather than for a specific brand. the consumer desire that is stimulated is referred to as demand. during the growth stage of the product life cycle, promotional expenditures are made to stimulate consumer desire for a specific brand due to increased competition. the consumer desire that is stimulated is referred to as demand.

During the introduction stage of the product life cycle, promotional expenditures are made to stimulate consumer desire for an entire product class rather than for a specific brand. The consumer desire that is stimulated is referred to as primary demand.
Primary demand is the desire for a product class rather than for a specific brand.During the growth stage of the product life cycle, promotional expenditures are made to stimulate consumer desire for a specific brand due to increased competition. The consumer desire that is stimulated is referred to as selective demand.Selective demand is the preference for a specific brand.

The advantage of administering personality tests on employees is that it will allow the employer to know the mindset and personality of the employee. this will allow the employer to at least have an idea as to how the employee works and how his attitude in the workplace. the disadvantage is that it may make the employee a little anxious as to whether he would meet the personality requirements of the employer and whether he would be able to retain the job or not.