Shinji Saitoh is a researcher at Electronic Navigation Research Institute (ENRI), independent administrative institution (IAI). He received M. Eng. in Electronic Engineering from the University of ElectroCommunications (UEC) in 1998. He joined ENRI, the Ministry of Transport (MOT) in 1998. Currently, he is researching in the area of GPS and GBAS. He belongs to GBAS research group in ENRI. He is...

If a product has two dimensions of quality, one observable and one not, a firm can use observable quality as a signal of unobservable quality. The correlation between consumers’ valuation of high quality in each dimension is a key determinant of the feasibility of such signaling. A firm may use price alone as a signal, or price and quality together. Both signals tend to be used when the market ...