The inflation rate is expected to be 4.8544% next year.
Explanation:
The data we have on this problem is:
The nominal interest rate is 8%.
The real interest rate is 3%.
Knowing the formula for the real interest rate
[tex]1+R = \frac{1+r}{1+i}[/tex]
where R is the real interest rate, r is the nominal interest rate and i is the inflation rate, we can deduce the formula for the inflation rate as follows:
Step 1: multiply both members of the equation by (1+i)
[tex](1+R)(1+i)=1+r[/tex]
Step 2: divide both members of the equation by (1+R)
[tex]1+i=\frac{(1+r)}{(1+R)}[/tex]
Step 3: substract 1 from both members of the equation
[tex]i=\frac{(1+r)}{(1+R)} - 1[/tex]
Step 4: replace the given values in the equation
[tex]i=\frac{1+0.08}{1+0.03} -1=\frac{108}{103}-1 = 1.048544-1=0.048544[/tex]
The inflation rate is expected to be 4.8544% next year.