This study sought to identify the key determinants that lead individuals to participate in the transportation planning process. Two models of participation, one for the short-term and another for the long-term, were developed to test whether the key internal and external determinants are responsible for influencing a person's willingness to participate. The data for this study came from a mail-back survey that was administered to a random sample of 570 individuals throughout the State of Florida for a response rate of 37.37 percent. The results indicate that the internal motivational determinants exert more influence on a person's short-term willingness to participate as compared to a person's long-term willingness to participate. In addition, the external social capital determinants exert more influence on a person's long-term willingness to participate as compared to a person's short-term willingness to participate. However, only one of the three external citizenship orientation variables, participatory citizenship orientation, was found to be influential in determining a person's short-term willingness to participate. Recommendations were made for public managers to work collaboratively with the public as a participative facilitator, thereby opening up the decision-making process to the general public. One suggested course of action is for public managers to use existing civic organizations as a base for widening an agency's long-term planning outreach programs. In addition, suggestions for future research propose that qualitative studies delve in-depth into the positive/negative feelings related to participation, as well as look at how different public participation techniques may affect a person's willingness to participate, especially as it relates to different time frames.

The dissertation consists of three studies that seek to identify school caterer and women farmer constraints that have hindered the buy-local policy mandate of the Ghana School Lunch program, and to explore gendered agricultural technology adoption and contract participation strategies that could facilitate the policy mandate. The first study documents the constraints that have minimized caterer purchases of school food items from local farmers. The study presents an overview of the Ghana School Lunch Program and the buy-local policy mandate issued to school caterers. Survey data and descriptive analysis are employed to document and discuss the constraints that prevent school caters from purchasing from local farmers as well as the constraints faced by smallholder women farmers in supplying to school caters. The study subsequently discusses school caterers’ compensating variation of a hypothetical policy that requires them to firstly provide recommended portions of vegetables and protein, and secondly include fruits in the lunch of the schoolchildren. The second study analyses the factors underlying the probability that women smallholder farmers - compared to male farmers - adopt less a) improved seeds, b) fertilizer, c) herbicides and d) pesticides. The study further examines the sensitivity of gender differences in technology adoption to crop choice, particularly maize and legume, as well as the possible heterogeneity of technology adoption differences within rural and peri-urban communities. The adoption of these improved technologies is modeled using multivariate probit regressions. A gender gap is observed among legume farmers for improved seed and pesticide adoption. Moreover, the findings indicate that female maize farmers who have input into all cash crop production decisions are more likely to adopt improved seeds and pesticides. Among legume farmers, the results indicate that female farmers who are educated and have access to credit are more likely to adopt fertilizer, while female legume farmers who have a say in what the use of income generated from cash crop farming are more likely to adopt pesticides. These results imply that policy-makers and development practitioners in sub-Saharan Africa should consider strategies to target and increase educational, financial and productive assets of female farmers in order to close the gender technology gap and increase multiple technology adoption. The third study examines the use of farm-to-school contracts as a means to provide access to credit for women farmers in rural and peri-urban areas and facilitate the buy-local policy mandate. In particular, the study examines the factors influencing male and female smallholder farmers’ minimum willingness to accept (WTA) farm-to-school-lunch contracts for maize and cowpea beans. The minimum WTA simultaneously measures the decision to participate as well as the minimum price at which the smallholder farmer accepts the contract. Using sex-disaggregated data from a field experiment, a Tobit model is applied to explain the underlying factors influencing male and female smallholder farmer’s minimum WTA for a set of hypothetical maize and cowpea beans contracts. The results for the pooled sample indicate that the delivery at harvest option increases farmers’ minimum willingness to accept both the maize and beans contracts. The study further examines heterogeneity in the minimum WTA among smallholder farmers. The results in the female specification indicate that, the advance pay option lowers the minimum WTA for maize contracts. Additionally, women farmers who own non-farm business, compared to a male with a non-farm business, have a lower minimum WTA for the maize and beans contracts. The results suggest that if the government considers contractual arrangements between school caterers and local farmers to facilitate the buy-local policy mandate, an advance pay option to women farmers may yield lower premiums for contracted food items.

Includes bibliographical references (leaves 206-239) / The primary aim of the study was to develop a psychosocial assessment tool for determining willingness to participate in child-centred safety promotion interventions, specifically in a low-income community in South Africa. The secondary aim was to determine the factors associated with willingness to participate. The study employed a mixed methods approach to develop the measure, and included content validation, item writing and initial validation processes. Nominal Group Technique discussions were conducted with various role-players in the relevant communities to inform the development of the instrument, while participatory methodologies were utilised to conceptualise the instrument in relation to psycho-social factors associated with intervention participation, with these categorised according to core dimensions. A Delphi method utilising an expert panel reviewed items for relevance, difficulty and ambiguity, with items subsequently amended or removed. Item selection procedures were conducted on the English version of the instrument and these results were applied to the Afrikaans version. A pilot study was conducted as part of the initial validation in order to test the items and format the questionnaire. The instrument was then administered to Afrikaans speaking individuals in a community in the Western Cape. Iterative exploratory factor analysis was conducted at both the item and scale levels to select and reassign items and scales in order to determine the final composition of the questionnaire. The findings indicate that the instrument measures seven factors, namely incentives; priorities and community needs; perceived benefits; social approval; accessibility and values; altruistic capital; and community cohesion. These factors are explained in terms of the Process-Person-Context-Time model and the Theory of Planned Behaviour, considered within a participatory framework. The study findings indicate that the seven factors represent salient dimensions of the construct willingness to participate in interventions. The questionnaire and its subscales displayed acceptable to good reliability, with Cronbach’s α ranging from 0.55 to 0.80. Since willingness precedes actual participation, it is argued that insight into the factors that relate to willingness to participate provides an avenue for motivating actual participation. / Psychology / Ph. D. (Psychology)