The question remains whether these savings are sufficient and could have been achieved at a lesser cost through a combination of policy instruments, including economic ones. The development of the Smart Water Management in Korea (see Chapter 4) confirms that Korean authorities are looking for alternative options to address water scarcity and flood risks and make the best use of available w'ater and assets, while minimising or postponing investment in additional infrastructure to augment supply. Economic instruments can play an important role and complement the technical fixes used so far in Korean water management.