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    when total profit not increase, total profit decrease.

    when total profit start decrease, your profit become small.

    when sum of profit in country decrease, income into top, decrease. 

    profit in country = power of country

    win win trade, will increase profit, into top.

jelemy bentham	the greatest happiness of the greatest numbers

　　　　Jeremy Bentham - Wikipedia

Jean Jaques Rousseau	study natural state of players
	argument; natural state of players into social contract

    win win trade wiki contents:

    1⃣ economy predictions

    2⃣ economy theory

    3⃣ bankrupt measurement

    4⃣ study of past economy theory

    5⃣ win win trade 

    the wiki is free cost to study

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