When the central bank decides to decrease the policy rate, adjustments in short-term money market rates occur.  Returns on domestic investment decline relative to those from foreign investments, thus causing outflows of capital.  As a result, the baht depreciates, benefiting exports, employment and income.  This would in turn stimulate consumption.  At the same time, depreciation in the baht causes imports to be lower.   Thus, net exports increase and lead to higher economic growth.