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The Fundamental Law Of Highway Congestion Revisited: Evidence From National Expressways In Japan, Wen-Tai Hsu, Hongliang Zhang
The Fundamental Law Of Highway Congestion Revisited: Evidence From National Expressways In Japan, Wen-Tai Hsu, Hongliang Zhang
Research Collection School Of Economics
The fundamental law of highway congestion states that when congested, the travel speed on an expanded expressway reverts to its previous level before the capacity expansion. In this paper, we propose a theory that generalizes this statement and finds that if there exists a coverage effect, that is, the effect of longer road length on traffic conditional on capacity, then the new equilibrium travel speed could be lower than its previous level. Given the fundamental law, the theory predicts that the elasticity of traffic to road capacity is at least 1. We estimate this elasticity for national expressways in Japan …
How Does Childbirth Alter Intrahousehold Resource Allocation?: Evidence From Japan, Tomoki Fujii, Ryuichiro Ishikawa
How Does Childbirth Alter Intrahousehold Resource Allocation?: Evidence From Japan, Tomoki Fujii, Ryuichiro Ishikawa
Research Collection School Of Economics
Exploiting unique panel data that include direct measurements of resource allocation within households, we investigated the impact of childbirth on intrahousehold allocation for married Japanese couples. Based on a collective model of the household, we developed reduced-form and structural-form estimation equations that allow us to focus on private goods to track the changes in intrahousehold resource allocation. We found one additional child is associated with a reduction in the wife's private expenditure share by at least two percentage points. This may be because she substitutes more say in decisions on the children for her own private expenditure share.
The More Kids, The Less Mom's Divvy: Impact Of Childbirth On Intrahousehold Resource Allocation, Tomoki Fujii, Ryuichiro Ishikawa
The More Kids, The Less Mom's Divvy: Impact Of Childbirth On Intrahousehold Resource Allocation, Tomoki Fujii, Ryuichiro Ishikawa
Research Collection School Of Economics
We investigate how the impact of childbirth on intrahousehold allocation for married Japanese couples. We developed reduced‐form and structural‐form specifications from a unified theoretical framework. Under a weak set of assumptions, we can focus on private goods to track the changes in intrahousehold resource allocation. Our estimation results show that that allocation of resources within household tend to move to the disadvantage of women after a childbirth. One additional child is associated with a reduction in the wife's private expenditure share. Our estimation results reject the income-pooling hypothesis, and show that women are more risk averse than men.
Potential For Floating Offshore Wind Energy In Japanese Waters, A. R. Henderson, R. Leutz, Tomoki Fujii
Potential For Floating Offshore Wind Energy In Japanese Waters, A. R. Henderson, R. Leutz, Tomoki Fujii
Research Collection School Of Economics
The prospects for large scale commercialisation of sea-bed-mounted offshore windfarms are currently excellent, with the existing small-scale prototype windfarms currently being joined by the first large-scale parks in the shallow seas off the Danish, German, Swedish, Dutch, Belgian, British and Irish coasts. However other countries, including Japan, have much more limited regions of the shallow waters suitable for such developments and hence other concepts will also need to be utilised if offshore wind energy is also to become a major source of energy there.