지역난방 및 개별난방 투자의 경제적 파급효과 분석

Large heating system in apartment housing is divided into Individual Heating System (IHS) with District Heating System (DHS). In particular, new city construction, redevelopment and reconstruction, in one of two heating system shall be determined, as one factor in judgment, can take a look at the economic effects of DHS and IHS. Input-output (I-O) analysis is applied to find economic effects of the DHS and IHS investment on the backward sectors using recent published I-O table of 2014. Production-inducing effect, value- added creation effect, wage-inducing effect, and employment-inducing effect are calculated based on demand-driven model. Findings are as follows. First, production-inducing effects of 1 won investments on DHS and IHS are computed to be 1.4972 and 1.0110 won, respectively. The former is 1.5 times bigger than the latter. Second, value-added creation effects of those are calculated to be 0.5259 and 0.1295 won, respectively. The first is 4.1 times larger than the second. Third, wage-inducing effects of those are estimated to be 0.1130 and 0.0236 won, respectively. The former is 4.8 times greater than the latter. Fourth, employment-inducing effects of one billion won investments on DHS and IHS amount to 2.7917 and 0.4221 persons, respectively. The first is 6.6 times more than the second. The results imply that the investment on DHS is more desirable than that on IHS in terms of the economic effects on backward sectors.