In this study, yield-water and profit function was used to obtain water demand function in agriculture sector. The results showed that the ratio of actual to potential Evapotranspiration had positive, significant effecton the ratio of actual to potential yield for wheat and barley. Also, square ratio of actual to potential Evapotranspiration had negative, significant relationship. After estimat...

This paper analyzes seller choices and outcomes in approximately 700 recent Internet auctions on eBay. The ‘Buy it Now’ option that is available in these auctions allows the seller to supplement or replace the auction with a posted price offer. We use a structural model to control for the endogenous conduct of the auction (e.g., number of bids and bidders) as well as product and seller characte...

We conducted preference assessments with 4 typically developing children to identify potential reinforcers and assessed the reinforcing efficacy of those stimuli. Next, we tested two predictions of economic theory: that overall consumption (reinforcers obtained) would decrease as the unit price (response requirement per reinforcer) increased and that the cost and benefit components that defined...

Oil is a source of energy in the world as it an essential element that enters many areas service, production and consumption. It also strategic commodity with great economic value. Therefore, researchers are quick to present topic because its significant impact on all variables, whether oil countries or not Oil. The research aims know extent which Iraqi activity related affected by fluctuations...

Received: 23 January 2001 Revised: 12 October 2003 Accepted: 14 October 2003 Online publication date: 8 January 2004 Abstract International price indices (IPIs) provide the most timely and comprehensive market information available to international business. How do multinational enterprises (MNEs) affect the validity of IPIs? We review the earlier debate over methods for calculating IPIs, which...

Some studies show that Internet markets are more efficient than conventional markets with respect to price levels, menu costs, and price elasticity, except substantial and persistent dispersion in prices on the Internet. Is price dispersion in Internet markets higher than that of conventional markets? This paper examines the nature of price competition in books among five online book-sellers in...

We present a method for an autonomous agent to identify dominant market conditions, such as oversupply or scarcity. The characteristics of economic regimes are learned from historic data and used, together with real-time observable information, to identify the current market regime and to forecast market changes. The approach is validated with data from the Trading Agent Competition for Supply ...