Each question need to be done with 2 pages double-spaced and completed sentences

Each question need to be done with 2 pages double-spaced and completed sentences. Examples can be quoted from internet.1)Describe in some detail. The difference in allocation of resource(4 hints questions)between capitalism;socialism and communism?Use any model to explain Centralized vs decentralized allocations.2)Describe the notions inverse vs positive relationship; scarcity;association as causation; fallacy of composition andrational self-interest.3)Explain the notion of (PPC)production possibilities curve.Include shapes shifts and operational points.4)Outline in detail : The notion of free exchange. Discuss the types of protectionism used around the world to reinforce restriction of free-trade and what they denote. Name and describe at least 5 organizations that promote these concepts.