This paper deals with the analysis of the Purchasing Power Parity (PPP) hypothesis in China by means of fractional integration or I(d) techniques. Using real exchange rates data between the Chinese Yuan and the US dollar, the results indicate that the estimated integration order d is generally...

We use dynamic panel data regressions to investigate whether the strength of a country’s patent protection for pharmaceuticals is associated with more pharmaceutical patenting by its residents and corporations in the United States. Using the Pharmaceutical Intellectual Property Protection...

Building on the seminal work of Ginarte and Park (1997), we develop an index of property rights in pharmaceutical innovations, the Pharmaceutical Intellectual Property Protection (PIPP) Index, for 154 countries spanning 1960 to 2005. It incorporates 5 types of property rights in pharmaceuticals;...

Building on the seminal work of Ginarte and Park (1997. Research Policy. 26, 283–301), we develop an index of property rights in pharmaceutical inventions, the Pharmaceutical Intellectual Property Protection (PIPP) Index, for 154 countries spanning 1960 to 2005. It incorporates five types of...

We demonstrate the estimation biases that arise when stock returns from 12month prior and 2month prior are included within intermediate and recent past momentum profits. These biases lead to an overestimation of intermediate past momentum but an underestimation of recent past momentum in the US...

Pre-drying of lignite before feeding to the boiler is a potential way to increase the net efficiency of lignite-fired power plants. Lignite pre-drying is, however, a high energy consumption process with a high risk of spontaneous ignition. If the lignite is dried at low temperature, the...

In this note, we study parallel machine scheduling problem with past-sequence-dependent delivery times and a deterioration effect. We present polynomial algorithms for the problem with the total workload, the total completion time, the total absolute differences in completion times objectives.

Designing a cost-effective phase change thermal storage system involves two challenging aspects: one is to select a suitable storage material and the other is to increase the heat transfer between the storage material and the heat transfer fluid as the performance of the system is limited by the...

This work studies a variant of the online generalized assignment problem, where there are m⩾2 heterogeneous servers to process n requests which arrive one by one over time. Each request must either be assigned to one of the servers or be rejected upon its arrival, before knowing any...