Let the buyer or seller beware: measuring lemons in the housing market under different doctrines of law governing transactions and information

Under information asymmetry, lemons tend to be overpriced. Yet how much of an overpricing premium the lemons can command is contingent on the underlying legal institutions. A set of transaction data from Hong Kong’s housing market reveals that durable lemons are overpriced by 6.7 and 9.9 percent under the rules of “let the seller beware” (caveat venditor) and “let the buyer beware” (caveat emptor), respectively. Switching the legal regime from the former to the latter produces a 32.3 percent increase in the overpricing premium. However, this does not suggest that caveat venditor is necessarily amore efficient legal doctrine. New information disclosure institutions are emerging to deal with the lemons problem.postprin

Piezoelectric properties of 1-3 composites of PZT in P(VDF-TrFE) copolymer

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Evaluation of the material parameters of piezoelectric materials by various methods

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Effect of dielectric relaxation on the performance of P(VDF-TrFE) copolymer ultrasonic transducers

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Lead zirconate titanate/poly(vinylidene fluoride-trifluoroethylene) 1-3 composites for ultrasonic transducer applications

Author name used in this publication: Helen Lai Wah ChanVersion of RecordPublishe

Optical properties of a novel yellow fluorescent dopant for use in organic LEDs

In this paper, the optical properties of a novel organic, 2,8-di(t-butyl)-5,11-di[4(t-butyl) phenyl]-6,12-diphenylnaphthacene (tetra(t-butyl)rubrene) have been investigated. Our results show that there are two peaks in the photoluminescence (PL) spectra of tetra(t-butyl)rubrene (TBRb) which are also confirmed in the electroluminescence (EL) spectra. Photo-quenching of the PL intensity is observed when the irradiation time increases. It is shown that oxidation is the dominant reason for photo-quenching. The absolute refractive index and absorption coefficient have also been determined and the results correlate well with the PL results. The results show that TBRb can be a good dopant to achieve the Förster energy transfer and to assist light emission. The optical properties of TBRb are similar to those of rubrene; however, the PL of TBRb is much stronger than that of rubrene. Finally, although crystalline organics have been commonly reported by heating the sample, we report crystallization of TBRb at low temperature <230 K when the TBRb film is in an amorphous form before cooling. © Springer-Verlag 2004.postprin

Depolarization of a piezoelectric film under an alternating current field

2006-2007 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe

PZT/P(VDF-TrFE) nanocomposite hydrophones for ultrasonic measurements

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Effects of niobium doping on the piezoelectric properties of sol-gel-derived lead-zirconate-titanate films

Author name used in this publication: K. W. KwokAuthor name used in this publication: R. C. W. TsangAuthor name used in this publication: H. L. W. ChanAuthor name used in this publication: C. L. Choy2003-2004 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe

Resonance characteristics and polarization profile of partially poled P(VDF-TrFE) copolymer

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