Читать книгу Mathematics of the market. Service random flow - Alexandr Berlin - Страница 11

In accordance with the categories source of requests average number of request for goods per unit of time respectively

– from one group of individual consumers;

– intermediaries (e.g., agencies for the purchase and sale of apartments);

– firms and government agencies.

We denote in a general way the average number of applications from groups of consumers from sources of the i —th category,

n_i – the number of sources i —th category.

Then if on the market have k groups of consumers the average number of applications from one group of consumers will be determined from the expression.

c‘= (Σ ^K_i=1 c_i n_i) / Σ^k_in_i

The average duration of consumption (t’).

The duration of one consumption it is to the period of time from the date of acquisition until the moment you start searching the same product.

Time of consumption is always less time of possession of the goods.

For example, the owner of the car bought it 3 years ago. If he started looking for a new car without selling the old, the time of consumption will be 3 years.

The duration of consumption of food products is determined by the physical needs of the person also by the allowable time storage.

The duration of consumption of clothing is determined by its wear resistance, but now mainly accordance to fashion.

The duration of consumption of control automates, computing machines of cars is limited by their reliability and by their main indicators.

Therefore, the duration of consumption, is a random value and its the mean value can be determined only on the basis of observations of existing markets and statistical studies. The impact of advertising and managing consumer behavior in this book is not considered. Therefore, the duration of consumption, is a random value and its the mean value can be determined only on the basis of observations of existing markets and statistical studies.

Sometimes you must take into account the characteristics of the purchase process that affect time of consumption.

It is possible to allocate

1. Immediate purchase as the initial moment of consumption.

2. Purchases when were refunded or replaced

3. Remote buying (online) with delayed time of consumption.

4. The purchase requisition, which is not satisfied at the lack of product.

5. The purchase requisition, which is not satisfied at the lack of goods acceptable to the buyer.

6. The purchase requisition, which is not satisfied by reason of the expiration of the release of goods etc.

In determining the parameters of the market should be taken into account that the duration of consumption of most goods (except commodities first needs) and the number of users significantly to effects on the demand the stage when the market is not saturated and it very much to depend on the prices.

For example, at higher prices on televisions – the number purchases decreases, the time of consumption increases (less likely to alter the old model).

However, as we will see later, when the market is saturated demand – growth in consumption (purchases) stops regardless of price.