Description of the macro-economic variables (GDP, interest rate, exchange rate etc ...) that affect the tea companies (like Unilever Lipton Tea) when considering the sustainability approach in the tea production.

Describe which are the winning variables and which are the qualifying variables for tea companies.

(where qualifying factors are defined as those key characteristics in which operations' performance must be above a certain level in order for the customer to consider it and the "winning factors" are the essential reasons for choosing a product or service, allowing the company to compete successfully in its markets (competitive emphasis/strategic position) )