Since many uses bitcoin as the new cashless method. So does it will effect to each own country's economy?
Yes, it is quite possible for Bitcoin to affect the economy of a country.. If and when money from the country is being converted on a high volume into the Cryptocurrency market, it will tell on the economy.
Why not you look at the other side of the picture, the brighter one? If people are converting their money into digital currencies, they are also cashing their virtual currencies out in order to meet their needs. When they are investing 1000 dollars but collecting 2000 dollars is the amount they are getting as a reward for trusting the crypto market. Dont you think this way they are going to make country strong.