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Elasticity refers to the responsiveness of quantity demanded or quantity supplied to a change in price or another factor.

In microeconomic graphs, elasticity and inelasticity can be shown by the slope of the demand curve. If a demand curve is almost horizontal, then the product pricing can be described as very elastic. If a demand curve is almost vertical, then the product pricing can be described as very inelastic.

The formulae of elasticity:

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LO 2, AC 2.2

Power, or more precisely perceptions of power, are critically important in understanding the commercial negotiation process. From a commercial negotiation point of view (under any circumstances, either integrative or distributive approach), CIPS is interested in power from both a personal and organisational perspective. When you are negotiating on behalf of your employer, you bring the power of your organisation (its brand, reputation and purchasing spend) as well your own personal power (6 sources of personal power, based on French and Raven's power base model) to the negotiation.

In both integrative and distributive approaches, personal power plays an important role. It helps both parties push through negotiating barriers and secure commitment and final agreement

LO 1, AC 1.3

Buying organisation may increase its leverage with suppliers by concentrating spend. Supplier spend consolidation can take many forms as outlined below:

Vendor base reduction: straightforward reduction of number of suppliers in any category

Volume pooling: pooling cross organisational requirement until your order volume is high enough to attract new bidders/additional discounts

Volume redistribution: making recommendations following spend analysis to move from one supplier to another

Volume consolidation across categories: certain purchase requirements may be common across a number of categories

Standardisation and harmonisation of specifications: analysis of specifications and standards for a high spend purchased input, may show that there is a little difference between them and that the specification can be standardised or at least harmonised across the group or across national, regional or global operations.

Forming purchasing consortia: buyers may decide to come together and combine their purchase volumes to attract better deals.