Browsing by Author "Chiu, YH"

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Ownership and production efficiency: Evidence from Taiwanese banks
(2004-07-01)
Li, Y
;
Hu, JL
;
Chiu, YH
;
經營管理研究所
;
Institute of Business and Management
In the early 1990s, Taiwan began her deregulation trend in order to enhance competition and economic efficiency across all industries. We derive a theoretical framework to predict possible rankings in technical efficiencies of public, mixed, and private banks. A panel data set with 43 Taiwanese banks during 19971999 is used for empirical analysis. We then apply a translog distance function to estimate technical efficiencies. The relationship between technical efficiency and government shareholding is also examined. Empirical results show that a public bank in Taiwan can improve its technical efficiency by mixed ownership at a diminishing rate. Moreover, banks in Taiwan on average performed worse after the 1997 Asian financial crisis.
Payment types and number of franchisees
(2003-09-01)
Chiu, YH
;
Hu, JL
;
經營管理研究所
;
Institute of Business and Management
Current studies of the franchise system usually assume that the number of franchisees is exogenous and irrelevant to the payment types. However, to a franchise system or a franchiser the optimal number of franchisees is related to the payment types, e.g., franchise fee, royalty, etc. We develop a game-theoretical model and then use 1998 Bond's Franchise Guide Data for US franchise stores in order to test the theoretical predictions. According to our theoretical predictions, the optimal number of franchisees under a royalty is strictly less than that under a franchise fee. This is because royalties distort the effort incentive of franchisees and the franchiser can increase average revenue by having a smaller number of franchisees. A franchise fee will not distort the effort incentive of franchisees and can help achieve a higher profit for both the franchiser and the franchise system. When demand is certain, the optimal royalty rate to the franchise system is zero. Under a royalty payment, the royalty rate will be greater than zero if the franchiser maximises its own profit. Empirical results support our theoretical predictions: there is no significant relationship between franchise fee and number of franchisees. The number of franchisees has a significantly negative relationship with royalties, while it is significantly and positively correlated with the experience of the franchise system, area, training, and advertising fees required by the franchiser.
Temperature-dependent carrier dynamics in metallic carbon nanotubes
(2005-10-31)
Chiu, CW
;
Chiu, YH
;
Shyu, FL
;
Chang, CP
;
Chuu, DS
The low energy states in metallic armchair carbon nanotubes can decay by the electron-electron Coulomb interactions with the intraband and the interband excitations. The inelastic scattering rate is very sensitive to the changes in the electronic distribution and the state energy (or the wavevector). The temperature dependence is linear for the Fermi-momentum state. Such dependence is hardly affected by the nanotube radius and the Fermi energy. The electron-electron interactions are more efficient in electronic deexcitations compared with the electron-phonon interactions. The calculated results are roughly consistent with the experimental measurements from the time-resolved photoemission spectroscopy. (c) 2005 Elsevier B.V. All rights reserved.