Describe the effect of each of the following events on the demand for money in the country according to the portfolio th

[answerhappygod]

Describe the effect of each of the following events on the
demand for money in the country according to the portfolio
theories of money demand:
a. The Central Bank increased the base interest rate, which
in turn increased the general interest rates in the country.
b. The Banking Regulation and Supervision Agency approved a new
electronic payment system which will make payments much more liquid
and with a reduced cost.
c. The stock market's main index in country’s Stock market is
getting more volatile in the recent months.