Engineering Economics
Perfect monopoly exists only if:

the single vendor is the only one who has the permit to sell
the single vendor gets the absolute franchise of the product
the single vendor can prevent the entry of all other vendors in the market
the single vendor is the only one who has the knowledge of the product

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Engineering Economics
It is the practice of almost all banks in the Philippines that when they grant a loan, the interest for one year is automatically deducted from the principal amount upon release of money to a borrower. Let us therefore assume that you applied for a loan with a bank and the P80,000 was approved at an interest rate of 14% of which P11,200 was deducted and you were given a check of P68,800. Since you have to pay the amount of P80,000 one year after, what then will be the effective interest rate?

0.1647
0.1632
0.1602
0.1628

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