Kenmei Tsubota
Biographic Data
| ID | 6728985 |
|---|---|
| NAME | Kenmei Tsubota |
| GIVEN NAMES | Kenmei |
| FAMILY NAME | Tsubota |
| SIGNATURE | TSUBOTA K |
| AFFILIATIONS | Japan External Trade Organization |
| ORCID | 0000-0001-5192-1860 |
| VERIFIED | Yes |
| TOTAL WORKS | 3 |
| TOTAL CITATIONS | 1 |
| WORKS AS AUTHOR | 3 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 2016 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 1 |
The Impact of Russia–Ukraine War in Maritime Data
This study analyses weekly port calls from 2019 to 2026 to evaluate the Russia–Ukraine war's impact on maritime trade. The data reveals clear structural shifts that Ukrainian traffic moved from high‐risk areas like Odesa to safer Danube River ports. On the other hand, Russia sustained its maritime activity by navigating sanctions and redirecting exports to Asian markets. The Black Sea Grain Initiative also improved navigation conditions for both …
Bright Lights of Cities
With exploitation of satellite data, this paper uncovers the changes of economic activities in Russian cities from 1989 to 2012. Compared to the findings by population, satellite data allowed us to explore possibilities to understand the spread and growth in the intensity of economic activities in space and size. This paper examines the so called “Siberian Curse” where soviet era regional development policies, urban growth, and migration restrict…
Directional imbalance in freight rates
Freight rates often differ by the direction of freight transportation. To investigate the determinants of a directional imbalance in freight rates, we show that a deviation between front- and back-haul freight rates depends on both density economies and directional imbalances in transport flows. Using panel data on truck freight transportation in Japan, we find that a 10% increase in the front-haul transport flow relative to back-haul transport f…
Directional imbalance in freight rates
Freight rates often differ by the direction of freight transportation. To investigate the determinants of a directional imbalance in freight rates, we show that a deviation between front- and back-haul freight rates depends on both density economies and directional imbalances in transport flows. Using panel data on truck freight transportation in Japan, we find that a 10% increase in the front-haul transport flow relative to back-haul transport f…
Directional imbalance in freight rates
Freight rates often differ by the direction of freight transportation. To investigate the determinants of a directional imbalance in freight rates, we show that a deviation between front- and back-haul freight rates depends on both density economies and directional imbalances in transport flows. Using panel data on truck freight transportation in Japan, we find that a 10% increase in the front-haul transport flow relative to back-haul transport f…
Bright Lights of Cities
With exploitation of satellite data, this paper uncovers the changes of economic activities in Russian cities from 1989 to 2012. Compared to the findings by population, satellite data allowed us to explore possibilities to understand the spread and growth in the intensity of economic activities in space and size. This paper examines the so called “Siberian Curse” where soviet era regional development policies, urban growth, and migration restrict…
The Impact of Russia–Ukraine War in Maritime Data
This study analyses weekly port calls from 2019 to 2026 to evaluate the Russia–Ukraine war's impact on maritime trade. The data reveals clear structural shifts that Ukrainian traffic moved from high‐risk areas like Odesa to safer Danube River ports. On the other hand, Russia sustained its maritime activity by navigating sanctions and redirecting exports to Asian markets. The Black Sea Grain Initiative also improved navigation conditions for both …
Physics (2 works) · Automotive Engineering (1 work) · Black sea (1 work) · Curse (1 work) · Economic Sanctions and International Relations (1 work) · Economics (1 work) · Engineering (1 work) · Environmental and Biological Research in Conflict Zones (1 work) · European and Russian Geopolitical Military Strategies (1 work) · Flow (mathematics (1 work)