Q. What do you mean by Purchasing ? Explain the principles of purchasing.
Ans: MEANING OF PURCHASING: Purchasing is the process of buying material, parts and components, etc., in the right quantity at right time and place for the production of goods. The term purchasing is used in two senses– narrow sense and broader sense. In narrow sense, it means to buy an item and in broader sense it means a manerial activity including planning and policy formulation.
According to Prof. K. Shridhara Bhat & Sowmya R. Rao, “Purchasing refers to the functions of procuring of materials, supplies, machines, requirements, tools, spare parts and services required for meeting the needs of production department and maintenance department.”
As per Prakash Jai, “Purchasing is defined as the activity of acquiring goods and services at optimum cost from a competent and reliable source.”
Purchasing should not be confused with procurement. Purchasing is a narrow term and is included in procurement. Procurement is a broader term and includes the total responsibility of acquiring goods and services. Procurement include additional activities such as supervision, inspection, inventory control, etc. in addition to purchasing.
PRINCIPLES OF PURCHASING: Purchasing is the most important function in all types of firms whether it is small or large doing manufacturing or trading etc. Therefore it is essential that certain principles should be followed at the time of purchasing. These are:
1. Right Quality: Right quality means the suitability of item for the purpose (for which) it is required. It may either be of low quality, medium quality or best quality as per the product to be manufactured. Quality of the final product will depend upon the quality of the input. The quality of the item is expressed in terms of grades. The quality of the materials may be measurable or attributable. The quality can be measured by physical tests or checking, chemical analysis, etc. Use of brand name, standardising specification like height, weight, etc., can be helpful in maintaining quality of materials. The quality needed are specified by the concerned departments.
Factors Affecting Quality: The cost is the major factor which can affect the quality. The parum has to price the product keeping in view the competitors. Therefore, the purchase department cannot purchase the high priced quality items. The second factor is the suitability. A high quality item may not be suitable for production.
2. Right Quantity: The second principle is, purchasing the material in the right quantity. Right quantity refers to the quantity that may be purchased at a time with minimum total cost. When a purchase is made then two types of costs are to beard – one is carrying cost and the another is ordering cost. The purchase manager should maintain a balance between the two to keep the cost of material at minimum. Simulultaneously the material should be made continuously available so that stock short costs could be avoided. Therefore , the purchase manager should use his knowledge, experience and common sense to determine the right quantity.
Classification of Quantity: The order quantity can be classified into three classes:
(a) Economic Order Quantity (EOQ): It helps in determining the right quantity of material. The following formula is used to determine the EOQ.

(b) Bulk Order Quantity: Bulk order quantity means the large quantities. This quantity will be more than the EOQ. It gives the advantage of discount or low prices but increases the carrying and storage cost.
According to Prof. K. Shridhara Bhat & Sowmya R. Rao, “Purchasing refers to the functions of procuring of materials, supplies, machines, requirements, tools, spare parts and services required for meeting the needs of production department and maintenance department.”
As per Prakash Jai, “Purchasing is defined as the activity of acquiring goods and services at optimum cost from a competent and reliable source.”
Purchasing should not be confused with procurement. Purchasing is a narrow term and is included in procurement. Procurement is a broader term and includes the total responsibility of acquiring goods and services. Procurement include additional activities such as supervision, inspection, inventory control, etc. in addition to purchasing.
PRINCIPLES OF PURCHASING: Purchasing is the most important function in all types of firms whether it is small or large doing manufacturing or trading etc. Therefore it is essential that certain principles should be followed at the time of purchasing. These are:
1. Right Quality: Right quality means the suitability of item for the purpose (for which) it is required. It may either be of low quality, medium quality or best quality as per the product to be manufactured. Quality of the final product will depend upon the quality of the input. The quality of the item is expressed in terms of grades. The quality of the materials may be measurable or attributable. The quality can be measured by physical tests or checking, chemical analysis, etc. Use of brand name, standardising specification like height, weight, etc., can be helpful in maintaining quality of materials. The quality needed are specified by the concerned departments.
Factors Affecting Quality: The cost is the major factor which can affect the quality. The parum has to price the product keeping in view the competitors. Therefore, the purchase department cannot purchase the high priced quality items. The second factor is the suitability. A high quality item may not be suitable for production.
2. Right Quantity: The second principle is, purchasing the material in the right quantity. Right quantity refers to the quantity that may be purchased at a time with minimum total cost. When a purchase is made then two types of costs are to beard – one is carrying cost and the another is ordering cost. The purchase manager should maintain a balance between the two to keep the cost of material at minimum. Simulultaneously the material should be made continuously available so that stock short costs could be avoided. Therefore , the purchase manager should use his knowledge, experience and common sense to determine the right quantity.
Classification of Quantity: The order quantity can be classified into three classes:
(a) Economic Order Quantity (EOQ): It helps in determining the right quantity of material. The following formula is used to determine the EOQ.

(b) Bulk Order Quantity: Bulk order quantity means the large quantities. This quantity will be more than the EOQ. It gives the advantage of discount or low prices but increases the carrying and storage cost.
(c) Arbitrary Order Quantity: the future is uncertain and there may be varying market conditions, uncertain availability of material and funds, uncertain lead time, uncertain consumption. Thus in those cases, the purchase manager has to apply its own discretion and order the material in varying quantities from time to time.
Factors Affecting Quantity: There are different factors like cost of mederial, nature of material, manufacturing process, storage capacity, market conditions, availability of funds, etc., affect to the purchasing quantity.
3. Right Price: The right price doesn't mean the lowest price rather, it is the price which provides value for money. The cost structure of the product can guide to arrive at right price. The right price is that lowest possible price where the item is available as per standardised quality. The right price may differ from person to person, item to item, etc. Although the right price is an individual opinion yet it depends not only on market conditions but also on knowledge of price movements.
Factors Affecting Pricing: There are certain factors like quantity, quality, delivery time, life of the material, demand and supply curve, competition, discounts, terms of purchase, business relations, after-sales service, etc. which affect the pricing of the product. While making purchase, these factors should be kept in mind to determine the right price.
The organisations generally follow the tender system for making purchase. For obtaining the right price, the following documents can be referred.
(i) Catalogue price
(ii) Quotations
(iii) Previous purchased records
(iv) Letter of offer from supplier
(v) Prevalent market price.
4. Right Time: The time at which the purchase should be made is very important. The right time means the time at which the item should be made available. The right time of making order depends upon the lead time. Lead Time is the time between record recognition of the need and the item available for use. The right time will be the time when the stock reaches the minimum level. The inventory cost involves carrying cost and it goes on increasing in case of holding more stock than required. It will also block the capital of the firm. The chance of waste and obsolcence will also increase. Therefore the concept of right time is very important.
Factors Affecting Right-Time: The following factors affect right time.
(i) Lead time
(ii) Re-Order Level
(iii) Production cycle
(iv) Market Conditions
(v) Contingencies
Today many options such as integrated supply, vendor-held inventory, just in time and other practices are available which require more up-to-the minute supplier flexibility than just meeting a date on purchase order as was in classic delivery model.
5. Right terms or Right Contract: The purchase order, issued by a firm for making purchases, is a legal contract. This contract binds the seller and the buyer with the terms and conditions mentioned on it. Actually the terms and conditions should be mentioned on the quotation letters and tenders. These terms and conditions may be regarding insurance, sales tax, octroi, freight, excise duty, custom duty, etc. Sometimes the terms and conditions mentioned in the contract may too hard to complete. In that case, the suppliers may not send their quotations, etc.
It decreases the number of suppliers and ultimately the bargaining power of the buyer decreases. It is desirable that separate policies should be followed for making contracts of capital goods and raw materials. The terms and conditions of the contract should not be one-sided and unreasonable.
6. Principle of Right Place: It will be appropriate for the buyer to have the products at the right place. The right place means the place which is most convenient to him from the view point of location of store houses or the place of production or place of plant location. It will help in reducing the cost of internal freight and time. It will also save the items from deterioration due to repeated handling.
7. Principle of Right Mode of Transportation: Right mode of transportation needs to be identified as this includes the critical cost profile of an item.
Factors Affecting Right Mode of Transportation: There are three main factors which affect the transportation. These are:
(i) Cost
(ii) Time
(iii) Availability of Alternating Modes.
Sometimes the material needed to be transported urgently or the nature of material is perishable. Then the week for cost effective mode cannot be opted and has to be sent immediately. Otherwise the least cost mode of transport can be chosen. The availability of alternative modes of transportition is also important and the buyer should have the knowledge of alternatives available. He should make a comparison of costs, schedules, merits and demerits. The transportation affects the quality of service to customers also. If the delivery is made on time to customers, then it will help in improving the image of the concern also.
8. Principle of Right Source: Source means from where the material can be procured. Thus, source is the other meaning of supplier. Selecting the right source or supplier is an important consideration in the materials purchase procedure. Therefore, the purchase manager must investigate and evaluate its possible external suppliers for the specific materials. It is necessary to assess their legitimacy, evaluate their performances, technical abilities and costs. Thus, purchasing department tries to select a responsible and responsive supplier who can provide the best combination of quality, quantity and price at the same time. In addition to that, the delivery time and ability to provide material on time should also be carefully evaluated.
For routine purchases, the purchase department maintains a list of suppliers from whom the purchase may be made. If the purchase is made for the first time for an item, then the suppliers are to be evaluated.
Types of Source: The types of sources are as follows:
(i) Sole Sourcing: It means only one supplier is available. It may be due to several reasons such as technical specification, raw material, location and so on.
(ii) Single Sourcing: It means the selection of one supplier for an item from the several sources available.
(iii) Multiple Sourcing: It means to purchase an item from more than one supplier. It helps in continuity of supply and the lowering of prices due to competition.
Factors Affecting Selection of Source: The factors like (i) Technical ability (ii) Manufacturing capability (iii) Reliability (iv) After sales service (v) Supplier location (vi) JIT capability (vii) Price and (viii) Other considerations affect the selection of source.
Types of suppliers: The suppliers may be of following types:
(i) Manufacturers
(ii) Distributors or Commission Agents
(iii) Stockist or wholesalers
(iv) Retailers
Purchasing: Meaning and Principles of Purchasing



