public class WorldEconomy

public class WorldEconomy {

    boolean revolution;

    void run() {
        while (!revolution) {
            doCapitalism();

            //// NEW DEAL.
            //// Un-comment in case of crisis (see 1929)!
            //makePublicWorks(new GovernmentalLoan())
        }
    }

    void doCapitalism() {
        long surplus = doBusiness();

        // Avoid deflation.
        while(surplus > 0) {
            surplus -= lendAndInvest();
            surplus -= expandMarkets();  // Occupy more teritory.
            surplus -= advertizeAndLitigate();
            surplus -= consumeHealth();
            surplus -= buyLuxuries();    // Enforce turistic habits.
            surplus -= buyGunsAndAmmunitions();
            surplus -= execWars();
        }
    }

    long doBusiness() {
        long profit = sellProductsAndServices();  // Exploit everything alive...
        profit += doImaterialTransactions();      // Buy (whatever) low, sell it high. 

        return profit;
    }
}