General enviroment (PESTEL)
P: policy=> goverment policy, political stability, corruption, labor law, trade restrictions
E: Economics => economic growth, exchange rate, interest rate, inflation rate, disposable income, unemployment rate,...
S: social => population growth rate, Age distribution, Career attitudes, Safety emphasis, Health consciousness, lifestyle attitudes, and cultural barriers.
T: technology => technology incentives, level of innovation, Automation, R&D technology change, Technology awareness.
E: Environment => weather, climate, Enviroment polices, climate change, pressure from NGO's (non-governmental organization: các tổ chức phi chính phủ)
L: Law or legal => discrimination Laws, Antitrust Laws, Employment Laws, Customer protection Laws, Copyright and patent Laws, Health and safety Laws.