| 1. |
Sunbin Yoo, Junya Kumagai, Kohei Kawasaki, Sungwan Hong, Bingqi Zhang, Takuya Shimamura, Shunsuke Managi, Double-edged trains:Economic outcomes and regional disparity of high-speed railways, Transport Policy, 10.1016/j.tranpol.2023.01.016, 133, 120-133, 2023.03, We illuminate the causal relationship between high-speed railway (HSR) expansions and economic develop-ment, focusing on HSR in Japan-the Shinkansen-from 1983 to 2020. To address endogeneity concerns about HSR station construction, we employ a market access approach that captures both the direct and indirect impacts of HSR expansion. The results show that a 1% increase in HSR market access increases the land price by 0.176%, total income (hereafter, income) by 0.425%, and income per capita by 0.023% of Japan. However, most of the benefits are focused in Tokyo and other developed areas, while the economic growth due to HSR expansion of cities outside these areas is negative or statistically insignificant. We confirm the robustness of the results through the instrumental variable (IV) approach and a series of robustness checks. Next, we conduct counterfactual analyses using regression results to evaluate future Japanese HSR plans: the Linear Shinkansen, regional expansion, and a policy that would implement both. Simulation results reconfirm that future HSR plans will induce economic growth but, at the same time, aggravate regional disparity; thus, the expected economic outcomes may be double-edged.. |
| 2. |
Sunbin Yoo, Naoki Wakamori, Yoshikuni Yoshida, Preference or technology? Evidence from the automobile industry, TRANSPORTATION RESEARCH PART D-TRANSPORT AND ENVIRONMENT, 10.1016/j.trd.2021.102846, 96, 2021.07, Which comes first in reducing the Carbon Dioxide (CO2) emissions from the transportation sector: consumer preference or technological advancement? Using a series of discrete-choice demand models, we estimate the demand for automobiles in Japan. Our model explicitly allows consumer preferences for fuel economy to evolve over time, and the estimation results confirm the existence of such a change. We then simulate consumer behavior, enabling consumers in 2010 to choose automobiles from 2016, and vice versa. The results imply that both consumer preferences and technological advancement are important-without technological advancement and increases in consumers' appreciation for fuel-efficient cars, CO2 emissions cannot be reduced.. |
| 3. |
Sunbin Yoo and Shunsuke Managi, Global Mortality Benefits of COVID-19, Technological Forecasting & Social Change, 2020.11. |
| 4. |
Sunbin Yoo, Kyung Woong Koh, Yoshikuni Yoshida, Are consumers abandoning diesel automobiles because of contrasting diesel policies? Evidence from the Korean automobile market, Energy Economics, 10.1016/j.eneco.2020.104969, 92, 104969-104969, 2020.10, We investigate whether the contrasting set of transportation policies in Korea - reductions in fuel taxes and increases in diesel automobile prices - has decreased emissions. Using a random-coefficient discrete choice model and hypothetical policy sets, we estimate the automobile demand of consumers, the market share of cars by fuel type, and total emissions, assuming that consumer preferences for driving costs change over time. Then, we separately analyze the effect of each policy set on automobile sales and emissions, particularly carbon dioxide, nitrogen oxide, and particulate matter. Our analyses reveal that Korean consumers have become more sensitive toward fuel costs over time and that the emission consequences of Korean policies depend on consumer preferences. (C) 2020 Elsevier B.V. All rights reserved.. |
