the current study assessed the climate change impacts on land productivity of major food and non-food grain crops in india. we compiled panel data for 30 years (1980-2009) using fifteen crops across thirteen agriculture intensive states. the value of production for each crop is estimated by farm harvest price (at constant prices, 1993-1994). aggregate value of production on per hectare land is ...

The use of a public screen in electronic brainstorming has often been justified as a tool for sharing ideas. Little attention has been given to how such a tool influences group performance in terms of the quality of ideas generated. This article attempts to assess sources of influences the public screen manipulation may have on group performance. Using a laboratory experiment, 274 university st...

We propose a procedure to obtain a general estimate of the rate at which agricultural productivity declines on newly cleared land in the Brazilian Amazon. This estimated parameter has two advantages over conventional estimates. First, it is a general, average estimate that can be used in macro-scale economic analysis. Second, the estimate is derived from regional data accessible to economists r...

OBJECTIVES The aim of this study was to investigate the difference in productivity between those who are depressed and those who are not. METHODS A cross-sectional study of depressive and non-depressive employees at a workplace was performed. Data was collected between April and June 2008 through self-reported questionnaires including the Stanford Presenteeism Scale. One thousand employees pa...