During the past years the reserve ratio of Sri Lanka has been fluctuating due to various reasons. Explain the causes for this. $($explain using the reserve rates of Sri Lanka from year $2018)(40$ marks$)$ A quite exceptional and outstanding piece of answer, providing insights about explaining the causes for the reserve ratio of Sri Lanka to fluctuate, which is not been subject to repetition; this range is distinguished by superior organization, economic use of language and totally comprehensive, given the conditions of the question. Excellent understanding and application of the relevant theoretical model with no errors. The piece of work written very well with Harvard referencing and proper reporting style.