A consumer survey and Tobit analysis were used to determine the effect of message framing and other factors on selfreported organic food purchase likelihood. Negative framing, which emphasizes the possible negative consequences of conventional agricultural techniques, led to a “boomerang effect” that resulted in lowered purchase likelihood of organic food by consumers with high trust in food sa...

This study uses heteroskedastic Tobit and Censored Least Absolute Deviations models to examine the impacts of dairy cow ownership on selected outcomes for a sample of 184 households in coastal Kenya. The outcomes examined include gross household cash income, gross non-agricultural income, consumption of dairy products, time allocated to cattlerelated tasks, number of labourers hired and total w...

22 Groundwater contamination was characterised using a methodology which combines 23 shallow groundwater geochemistry data from 17 piezometers over a 2 yr period in a 24 statistical framework and hydrogeological techniques. Nitrate-N (NO3-N) 25 contaminant mass flux was calculated across three control planes (rows of 26 piezometers) in six isolated plots. Results showed natural attenuation occu...

Regions vary strongly according to the participation of firms in R&D activity. By linking data on R&D activity at the firm level with GIS-based data on economic and other location features of regions, we are able to investigate the impact of local factors on R&D involvement for various types of firms. The relative importance of local factors as determinants of the R&D involvement of firms is es...

Modernization and commercialization of the smallholder agricultural sector provides the stimulus and impetus to reducing food insecurity in developing countries. This study seeks to fill the gaps in the literature particularly by comprehensive conceptualization of the drivers of commercialization at a household level and across different socio-economic and agro-ecological zonation in the wake o...

In this paper, Data Envelopment Analysis (DEA) and super efficient DEA (SE-DEA) are employed to measure the efficiency of Chinese commercial banks. Incorporating Tobit regression analysis, the determinants of banking efficiency are investigated based on Panel data. Overall, the DEA results show relatively low average efficiency levels and state-owned banks are more inefficient than that of join...

BACKGROUND For several immune-mediated diseases, immunological analysis will become more complex in the future with datasets in which cytokine and gene expression data play a major role. These data have certain characteristics that require sophisticated statistical analysis such as strategies for non-normal distribution and censoring. Additionally, complex and multiple immunological relationshi...

This study compares an ordered probit model and a Tobit model with selection to take into account both true zero and protest zero bids while estimating the willingness to pay (WTP) for coi~servation easements in Macon County, NC. By comparing the two models, the ordere~Uunordered selection issue of the protest responses is analyzed to demonstrate how the treatment of protest responses can signi...