1. Economical
   1. Conflicts with major retail stores
   2. Seasonal cash flow
   3. High maintenance fees
2. Technological
   1. Easy to be copied
   2. Intensive competition
   3. High fix cost in innovations
3. Social
   1. Consumers are picky on health issues
   2. Moral farming is under concern
   3. Product life cycle is increasingly shorter
4. Political
   1. Measures to ensure food safety
   2. Expensive regulatory fees
   3. Strong negotiation power of labor force
5. xmind.net/blog/en/brainstorming-template