GTX-C 개통과 인덕원 주변 아파트명 변경에 따른 매매 가격 프리미엄 분석

초록

This study analyzes the impact of incorporating the Great Train eXpress Line C (GTX-C) station name into apartment complex names on sale prices. Eleven apartment complexes near Indeogwon Station that adopted the name “Indeogwon” were designated as the treatment group, while nearby complexes within a 0.5 km radius served as the control group. Using panel data from 2014 to 2025, we applied difference-in-differences analysis, event study models, and robustness checks, including parallel trend testing, placebo test, and district-specific time trends. The results showed that renaming increased the average sale prices per pyeong (3.3 ㎡) by approximately 6.31%, suggesting the emergence of a GTX-C-related naming premium. Conversely, the jeonse market (large deposits, no monthly rent) showed no statistically significant response, and sales volume declined, possibly reflecting delayed transactions due to elevated price expectations. The event study analysis revealed that the renaming effect emerged immediately after implementation, became significantly positive from the second to fifth periods, and was moderated beyond the sixth period. This pattern suggests that the naming effect was not instantaneous but developed over the short- to medium-term, as market participants gradually incorporated new information and adjusted their expectations. This study’s limitations include a single-case focus and difficulty in isolating physical improvement effects. Future research should explore the long-term dynamics, user segmentation, and naming effects linked to broader transportation or urban development initiatives.

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