This study applies online auction theories developed in the US to a different national and cultural context (i.e., China). After summarizing and comparing factors that drive price across online auctions in China and the US, this study is able to identify similarities and differences. Specifically, the starting bid and seller reputation have been shown to have similar effects on price, though th...

ABSTRACTIntroduction: Celery (Apium graveolens L.) is a member of the Apiaceae family that can grow everywhere. contains flavonoids, saponins, tannins, essential oils, apigenin, choline, vitamins A, B, C, asparagine bitter substances. and tannins which are antibacterial compounds. Streptococcus mutans Gram-positive bacterium creating an acidic atmosphere in oral cavity, causes insufficient sali...

Economists have long recognized the importance of trust, but how can trust be enhanced in a marketplace? We set up a rational expectation model that allows the marketplace to target buyer trusting (via a buyer protection program) and seller trustworthiness (via penalty on cheaters) separately. We show that these two policies have opposite effects on the equilibrium level of trust: buyer protect...

Eight plant essential oils were extracted and tested for their efficiency as natural insecticides against the cotton mealybug, P. solenopsis (Tinsley). In-vitro bioassay, contact toxicity of to adult females 2nd instar nymphs was determined. Also, repellence activity tested. The most effective oil female’s after 72 hrs application L. nobilis followed by Apium graveolens, M. longifolia, C. artic...