This study quantifies the effects of student behavior, teacher attributes, and course characteristics on class attendance and performance. Several notable factors that influence attendance and grades are motivation, prior grade point average (GPA), self-financing by students, hours worked on...

The impacts of the former Soviet Union leaving the world wheat market as a consistent net importer are investigated using a modified spatial trade equilibrium model. The simulation results suggest that the former Soviet Union, following Bigman's stochastic trade hypothesis, can have a...

While controversy surrounds skewness attributes of typical yield distributions, a better understanding is important for agricultural policy assessment and for crop-insurance rate setting. <xref ref-type="bibr" rid="AAR091C5">Day (1965)</xref> conjectured that crop yield skewness declines with an increase in nitrogen use at low levels but...

No satisfactory motivation has been forwarded in favor of any crop yield distribution, including the normal. This article explores the foundations of yield distributions for the Law of the Minimum resource constraint technology at the plot level of analysis. With independent, identical, uniform...

An issue when seeking to identify rotation choice is persistence in yield-enhancement and input-saving carry-over effects. Focusing on carry-over length and the monoculture decision, we use quasi-convexity of choice functions to develop price-independent and price-dependent principles concerning...

For risk-averting agents, risks alter production decisions while the existence of institutions to insure against adverse states of nature will likely restore decisions toward levels under risk neutrality. In this article, conditions are identified on a stochastic technology to test that risk...

Meat retailers express demand for a more uniform product, and technical innovations are allowing an increasingly uniform supply. Packers can promote uniformity through pre-slaughter sorting, or earlier through contracts. Emphasizing effort on the packing line, we develop a model whereby packers...