Virtual marketplaces

1. Market Structure vs Economic Structure (Virtual Economy Gamification Tips)
2. Hard Currency vs Soft Currency (Virtual Economy Gamification Tips)
3. Tangible Goods vs Intangible Goods (Virtual Economy Gamification Tips)
4. Economic Constraints vs Game Constraints (Virtual Economy Gamification Tips)
5. Game Economy vs Virtual Economy (Gamification Achievement Systems Tips)
6. In-App Purchases vs In-Game Purchases (Virtual Economy Gamification Tips)
7. Virtual Wealth vs Real Wealth (Virtual Economy Gamification Tips)
8. Market Value vs Face Value (Virtual Economy Gamification Tips)
9. Virtual Property vs Physical Property (Virtual Economy Gamification Tips)
10. Commodity vs Luxury (Virtual Economy Gamification Tips)
11. In-Game Economy vs Real Economy (Virtual Economy Gamification Tips)
12. Virtual Goods vs Digital Goods (Virtual Economy Gamification Tips)
13. Virtual Profit vs Digital Profit (Virtual Economy Gamification Tips)