There have been dramatic structural changes in the U.S. hog industry in the last two decades that have coincided with substantial increases in farm productivity. This study used a stochastic frontier analysis to measure TFP growth between 1992 and 2004 and to decompose the TFP growth into four components: technical change and changes in technical efficiency, scale efficiency, and allocative eff...

This paper investigates the total factor productivity (TFP) performance of NWFP agriculture crop subsector from 1970 to 2004. It identifies the sources of growth of TFP growth and assesses TFP growth changes in agriculture crop sub-sector. Data envelopment analysis (DEA) approach is used to estimate the changes in the production frontier. The Malmquist productivity index has decomposed total fa...

There is growing interest in the view that underdevelopment may not just be a matter of lack of resources like capital, skilled labor, entrepreneurship or ideas but also a consequence of the misallocation or misuse of available resources. In particular Banerjee and Duflo (2005), Jeong and Townsend (2007), Restuccia and Rogerson (2008), Hsieh and Klenow (2009), Bartelsman et al. (2008), Alfaro e...

Economists point towards cross-country differences in TFP to explain wide differences in income per capita across countries. This paper derives theoretical restrictions for interpreting the data based on a neoclassical, dynamic general equilibrium model in which the institutional and technological factors and scal policies signi cantly alter overall productivity as measured by the conventional ...

This paper examines whether UK firms that locate their R&D activity in the USA benefit more than other UK firms from knowledge spillovers originating from US R&D. Patent data provides a firm-level measure of the location of innovative activity, which enables the identification of knowledge spillovers associated with "technology sourcing". Our identification strategy helps to address various pro...

We show how production and pricing data can be used to estimate merger–related efficiencies using pre merger data, and we assess the changes in efficiency and marginal costs that are expected to occur post merger. To do this, we jointly estimate firm level returns to scale, technical change, TFP growth, and price–cost markups. We implement our empirical model using data for the North American (...

This paper documents large differences across vintages in the properties of the widely-used quarterly utilization-adjusted TFP series produced by Fernald (2014), who provides updated data each quarter on his website. The most recent vintage of the adjusted TFP series has correlations with earlier vintages of the series that are less than 0.6. Compared to earlier vintages, the most recent vintag...

Total and specific activities of alaninaminotransferase (Al-AT) were determined in general tissues, mitochondrial and cytosol fractions of visual, orbital, motor, limbic areas of brain cortex and hypothalamus of three-month old and one-year old rats under 10-20 days and 30 days protein deprivation and under recovery of normal food regime during the same terms. It was found out that Al-AT activi...

Malignant ascites is the abnormal accumulation of fluid in the peritoneal cavity associated with several intrapelvic and intra-abdominal malignancies. The development of ascites leads to significant symptoms and poor quality of life for the cancer patient. Available therapies for palliation include treatment of the underlying disease, but when there are no treatment options, the use of diuretic...