there are various encryption methods, but is the encryption standard currently used worldwide.

The encryption standard that is being currently used worldwide is the AES. The AES or also known as the Advanced Encryption Standard is being used as a way of having the data to be decrypted and encrypted in which the key used are the same and it is considered to be a symmetric key algorithm.

answer; is the sum of all individual demands curves;

answer; lags, push the econ below the natural level of output;