Hand-held spray guns and lances are the most widely used methods of crop protection in greenhouses despite the heavy workload and high risk of operator exposure associated with these techniques (Foqué 2012). These spray application techniques have also proved to be less effective than spray boom equipment under many conditions while the advantages of using vertical boom sprayers compared with u...

This paper explores the impact of investor flows and financial market conditions on returns in crude-oil futures markets. I argue that informational frictions and the associated speculative activity may induce prices to drift away from “fundamental” values, and may result in booms and busts in prices. Particular attention is given to the interplay between imperfect information about real econom...

The oil and gas industry will continue to boom in the coming future. Obtaining oil and gas from conventional and non-conventional resources will become more and more challenging. This intensifying need will impose very considerable demands on work force, financial and technology capabilities. Since the future supplies of oil and gas are to expand, advanced technology will become increasingly ne...

The oil and gas industry will continue to boom in the coming few decades. Obtaining oil and gas from conventional and non-conventional resources will become more and more challenging. This intensifying need will impose very considerable demands on work force, financial and technology capabilities. Since the future supplies of oil and gas are to expand, advanced technology will become increasing...

The recent oil and gas production boom in the contiguous United States generated tens of billions in additional royalty income for owners of oil and gas rights. We use the royalty income shock to study the local multiplier effect of unanticipated income and find that each royalty dollar received by county residents created an additional $0.50 in local income, mostly through greater wage income....