Although there have been many studies on the degree of overfertilization, are few systematic comparative analyses overfertilization three major grain crops (wheat, rice, and maize) over a long time span in recent years. Whereas influence government efforts, individual characteristics farmers, economic factors farmer’s fertilization decision ignored financial consideration farmers. This study ai...

History of Autologous Blood Use---------The concept of using the patient as his own blood donor is more than 100 years old. Autotransfusion was used sporadically in the past as an emergency measure when the patient's life was in danger due to sudden massive hemorrhage and lack of donor blood supply. Autotransfusion is essentially credited to an English obstetrician/surgeon, Dr. James Blundell. ...

Evaluating the merits of alternative tax and incomes policies often requires knowledge of their impact on consumer demand and welfare. Attempts to quantify these impacts are complicated; aggregate demand responses depend on the population distribution of preferences for commodities, yet consumer preferences go unobserved and economic theory places few restrictions on their form and distribution...

Empirical work on choice models, especially on relatively new topics or data sets, often starts with descriptive, or what is colloquially referred to as “reduced form”, results. Our descriptive form formalizes this process. It is derived from the underlying behavioral model, has an interpretation in terms of fit, and can sometimes be used to quantify biases in agents’ expectations. We consider ...