A two-stage stochastic programming with recourse model for determining robust planting plans in horticulture

A two-stage stochastic programming with recourse model for the problem of determining optimal planting plans for a vegetable crop is presented in this paper. Uncertainty caused by factors such as weather on yields is a major influence on many systems arising in horticulture. Traditional linear programming models are generally unsatisfactory in dealing with the uncertainty and produce solutions that are considered to involve an unacceptable level of risk. The first stage of the model relates to finding a planting plan which is common to all scenarios and the second stage is concerned with deriving a harvesting schedule for each scenario. Solutions are obtained for a range of risk aversion factors that not only result in greater expected profit compared to the corresponding deterministic model, but also are more robust

Energy Cane Usage for Cellulosic Ethanol: Estimation of Feedstock Costs

Cellulosic Ethanol, Energy Cane, Sugarcane, Farm Management, Production Economics,

The Economics of Processing Ethanol at Sugarmills: A Simulation Approach

Resource /Energy Economics and Policy,

A Comparison of Pricing Strategies for Cellulosic Ethanol Processors: A Simulation Approach

Resource /Energy Economics and Policy,

Breaking into the Cellulosic Ethanol Market: Capacity and Storage Strategies

This paper examines the possibilities of breaking into the cellulosic ethanol market in south Louisiana via strategic feedstock choices and the leveraging of the area’s competitive advantages. A small plant strategy is devised whereby the first-mover problem might be solved, and several scenarios are tested using Net Present Value analysis.cellulosic ethanol, sugarcane, energy cane, sweet sorghum, bagasse, ethanol, biofuel, bioethanol, Agribusiness, Agricultural Finance, Crop Production/Industries, Production Economics, Research and Development/Tech Change/Emerging Technologies, Resource /Energy Economics and Policy,

Willingness to pay for locally produced foods: A customer intercept study of direct market and grocery store shoppers

Increasingly, grocery stores are marketing foods differentiated as locally produced. Freshness and taste are obvious reasons for consumer preference for these goods, but also important may be home-bias. Whatever the motive, there is substantial evidence that some consumers are willing to pay premium prices for food characterized as locally produced. A customer-intercept survey and a choice experiment of food shoppers in direct markets and traditional grocery stores was analyzed using Conjoint methods to evaluate WTP for characteristics related to locally grown fresh strawberries. Our results suggest that consumers are willing to pay more for locally produced berries: Customers intercepted in grocery stores would pay an average of 64 cents more per quart, while those intercepted at direct markets would pay nearly $1.17 more per carton of strawberries that was grown locally rather than berries identified simply as "produced in the U.S." These conclusions provide a solid rationale for the existence of niche market potential for local berry producers.Consumer/Household Economics,

Postracial Remedies

The Supreme Court’s equal protection jurisprudence is decidedly postracial. The Court has restricted the Equal Protection Clause to intentional discrimination by the government, concluding that the Constitution does not prohibit private acts of discrimination and rejecting challenges based on disparate impact, even when rigorous statistical analysis indicates that race is likely a factor. It has held that remedying the effects of past societal discrimination is an insufficient basis for race-specific remedies such as affirmative action. It has also ended remedies of this sort designed to combat previous state-sponsored racial discrimination, such as court-ordered desegregation measures in the schools and the preclearance provisions of the Voting Rights Act. Constitutional litigation currently provides little or no recourse to address racial disparities in outcomes that are not demonstrably caused by intentional governmental racial discrimination, and race-specific remedies face a level of judicial scrutiny that is especially difficult to satisfy. This Article asks what can be done under these circumstances to ameliorate racial inequality in a manner that is politically feasible and does not run afoul of constitutional limits. It argues that “postracial remedies” are a necessary component of an effective strategy to combat racial disparities in areas such as wealth, incarceration, education, and housing. Postracial remedies seek pragmatic solutions for the economic, social, and structural problems that disproportionately burden blacks in the United States. These remedies are not race specific because they do not treat people differently based on race, but they are race sensitive because they target the manifestations of racial inequality and recognize the salience of race in today’s political and legal environment. This approach, which seeks legally achievable remedies, is also consistent with “antibalkanization” perspectives associated with “race moderates” whose civil rights equal protection jurisprudence is motivated, in part, by a concern with preserving social cohesion. Although postracial remedies are necessary within this postracial ethos, pursuing them does not require acceptance of the postracial narrative or the abandonment of advocacy to combat ongoing racial discrimination