Measures the effect of a change in a variable on demand
Elasticity
The sign shows the direction of movement
The size of the number (ignoring the sign) shows the percentage change in demand compared to the percentage change in the variable
Elastic
If the answer is bigger than 1, demand changes more than the variable (in percentages)
Inelastic
If the answer is less than 1, demand changes less than the variable (in percentages)
If demand is inelastic, it does not change at all when the variable changes
Income elasticity of demand (YED)
Measures the degree of responsiveness of demand for a good to a change in consumers' income, with all other factors unchanged
Normal product
Demand and income are moving in the same direction
Inferior product
Demand and income are moving in different directions
Income elastic
Percentage change in quantity demanded is more than percentage change in income
Income inelastic
Percentage change in quantity demanded is less than percentage change in income
Promotional elasticity of demand (PrED)
Measures the degree of responsiveness of demand for a good to a change in promotional spending, with all other factors unchanged
Promotion-elastic
Change in promotional spending results in a more than proportionate change in demand
Promotion-inelastic
Change in promotional spending results in a smaller than proportionate change in demand
Cross-price elasticity of demand (XED)
Measures the degree of responsiveness of demand for a product to a change in the price of another product, with all other factors unchanged
Substitutes
Positive XED, increase in price of one leads to more demand for the other
Complements
Negative XED, increase in price of one leads to less demand for both
Elastic
Percentage change in quantity demanded is greater than percentage change in price of another product
Inelastic
Percentage change in quantity demanded is less than percentage change in price of another product
The different elasticities are calculated assuming one variable changes but everything else stays the same
Elasticities are usually calculated based on past data, so conditions may have changed
Product development
Creating new or different products that provide customers with new benefits and added value
Product development process
1. Consider existing products and market threats/opportunities
2. Create new ideas
3. Develop the idea
4. Final testing
5. Post launch monitoring
Sources of new product ideas
Customer complaints
Market research
Research and development
Existing patents
Employees
Universities
Few initial ideas become selling products
Research and development (R&D)
The generation and application of scientific knowledge to create a new product or develop a new production process
Importance of R&D
Improve existing products
Lead to new products to generate more sales
Develop new processes to improve efficiency
Ways to protect new product ideas
Copyright
Patent
Trademarks
Patents provide legal protection for an innovative product idea for 20 years in the UK
Copyrights automatically protect the work of artists, writers and musicians
Trademarks protect designs and logos
Copyright
Automatically protects the work of artists, writers and musicians; copyrights do not have to be registered
Patent
Provides legal protection for an innovative product idea; in the UK, the holder of a patent has the right to be the sole user of a process or the sole manufacturer of a product for 20 years after it is registered
Trademark
Designs and logos can be protected by registering a trademark
Laws vary in different countries to protect new product ideas
The owner of a patent may sell the right to produce the product or to use the process to others
Benefits of having a patent for a new product
Provides legal protection for the innovative product idea
Sales forecasting
Estimating the future volume or value of sales
Impact of sales forecasting on business decisions
Affects required production levels, staffing requirements, cash flows and profits
Forecast of higher sales
May mean investment to increase capacity, recruitment of staff, higher dividends for investment