In order to catch up with the technological frontier, firms, especially in developing countries, try to acquire technological advancement through internal R&D efforts as well as through external technology sourcing activities. This study tests the existence of a complementarity between in-house R&D and external technology acquisition in Chinese manufacturing firms. We show that the two sources ...

This paper examines the central hypothesis of the influential Malthusian theory, according to which improvements in the technological environment during the pre-industrial era had generated only temporary gains in income per capita, eventually leading to a larger, but not significantly richer, population. Exploiting exogenous sources of cross-country variations in land productivity and the leve...

The gap between the world's rich and poor countries largely comes down to the financial and physical assets that create wealth. Developed economies possess more of this capital than developing ones, and what they have usually incorporates more advanced technologies. The implication is clear: A key aspect of economic advancement lies in poorer nations' capacity to acquire more capital and scale ...

Minimally invasive surgery (MIS) continues to play an important role in general surgery as an alternative to traditional open surgery as well as traditional laparoscopic techniques. Since the 1980s, technological advancement and innovation have seen surgical techniques in MIS rapidly grow as it is viewed as more desirable. MIS, which includes natural orifice transluminal endoscopic surgery (NOT...

considering the importance of increase in production and supply of agricultural products in iranian economic development, this study was carried out to investigate the impact of factors influencing the acreage (as a proxy for planned production and supply) of five important crops , namely wheat, barley, potatoes, sunflower and cotton. the seemingly unrelated regression estimation (sure) was use...

conclusions along with the technological advancement, different materials are employed according to the size of the cranium defect and the age of the case. the application of split costa cranioplasty for the small cranium defects in the region of patient’s face is the method with the least possibility of complications, and its cosmetic and functional results are quite promising. introduction os...