The Modified Arkansas Off-Stream Reservoir Analysis (MARORA) model estimates the economics of on-farm reservoirs and other water conservation improvements in alternative ground water situations. With restricted ground water supply, a combination of different water conservation methods is estimated to provide the greatest economic return. On-farm reservoirs are not economical if ground water is ...

Double cropping of wheat and maize is common on the North China Plain, but it provides limited income to rural households due to the small farm sizes in the region. Local farmers in Quzhou County have therefore innovated their production system by integration of watermelon as a companion cash crop into the system. We examine the economic performance and sustainability of this novel intercroppin...

most of the population of nigeria is rural and agriculture is the mainstay of the impoverished people’s livelihood. this paper estimated the determinants of rural poverty in nigeria using the tobit regression model. through the multistage sampling technique, primary data were obtained from 150 rural farming households using a questionnaire. the result of tobit regression analysis shows that inc...

Losing or leaving a job often means losing health insurance. Of all those who have lost private insurance and become uninsured, one-third have either left or lost a job in the recent past. Continuation of coverage subsidies under the Consolidated Omnibus Budget Reconciliation Act (COBRA) of 1985 mitigate only slightly this problem due to the high costs of the group coverage that must be purchas...

Serial monogamy is likely an adaptive mating strategy for women when the expected future fitness gains with a different partner are greater than expected future fitness with one's current partner. Using interview data from more than 400 women in San Borja, Bolivia, discrete-time event history analyses and random effects regression analyses were conducted to examine predictors of marital dissolu...

About 43 percent of nursing home costs are paid by Medicaid for the poor and for those who spend-down assets to qualify for Medicaid. We estimate the costs and distributional impacts of changes in the Medicaid asset test and the effect on the number of people spending down to Medicaid eligibility levels. Increasing asset thresholds from $2,00 to $12,000 would cost less than $4 billion, reduce s...

The relationship between income inequality and national savings is theoretically ambiguous, and past empirical studies have delivered mixed results. We revisit the question using a newly available source of data on inequality: the income share of the richest 10 percent and the richest 1 percent. Combining this with historical data on national savings rates, we are able to investigate the relati...

Researchers aim to make the strongest possible conclusions from limited amounts of data. To do this, they need to overcome two problems. First, important differences in the fi ndings can be obscured by natural variability and experimental imprecision. Thus, it is diffi cult to distinguish real differences from random variability. Second, researchers’ natural inclination is to conclude that diff...

Most of the population of Nigeria is rural and agriculture is the mainstay of the impoverished people’s livelihood. This paper estimated the determinants of rural poverty in Nigeria using the Tobit regression model. Through the multistage sampling technique, primary data were obtained from 150 rural farming households using a questionnaire. The Result of Tobit regression analysis shows that inc...

This article presents the findings of research on the global economic impact of GM crops since their commercial introduction in 1996. It updates part of the findings of earlier analysis presented by the authors in AgBioForum 8(2&3), 9(3), and 11(1).1 The analysis concentrates on farm income effects because this is a primary driver of adoption amongst farmers (both large commercial and small-sca...