After the war, Puey was awarded an MBE, resumed his studies, and in 1949 received one of Thailand's first Ph.D.'s in economics from the London School of Economics.
After the war, Puey was promoted to the rank of lieutenant colonel in the British forces and was awarded an MBE. He resumed his studies, and in 1949 received one of Thailand's first Ph.D.'s in Economics from the London School of Economics.