In missing data analysis, there is often a need to assess the sensitivity of key inferences to departures from untestable assumptions regarding the missing data process. Such sensitivity analysis often requires specifying a missing data model which commonly assumes parametric functional forms...

This paper evaluates the effects of patent protection on pharmaceutical innovations for twenty-six countries that established pharmaceutical patent laws during 1978-2002. Controlling for country characteristics through matched sampling techniques to establish two proper comparison sets among...

The analysis of panel data with non-monotone nonresponse often relies on the critical and untestable assumption of ignorable missingness. It is important to assess the consequences of departures from the ignorability assumption. Non-monotone nonresponse, however, can often make such sensitivity...

Policy makers around the world recognize the potentially harmful consequences of trademark counterfeiting and copyright piracy. Indeed, many countries have recently initiated policy reforms to strengthen the enforcement of intellectual property rights (IPR). Further, minimum standards of...

This paper combines a natural policy experiment and randomized lab experiments to estimate the differential impacts of counterfeiting on the sales and purchase intent of branded products of various quality levels. I collect new product-line level panel data from Chinese shoe companies from...

Purpose – The discriminative thinking that Chinese entrepreneurs are weak in innovations is widespread. But market competition, which is the main drive for innovations, has been introduced to post‐planning‐economy China for only 30 years or so, and China has only ten years' experience in...

Wireless ad hoc and sensor networks have received attention from research communities over the last several years. The ability to operate without a fixed infrastructure is suitable for a wide range of applications which in many cases require protection from security attacks. One of the first...