This study investigates the socioeconomic implications of farm-to-market road infrastructure on rural development in Zamboanga Sibugay Province, Philippines. Utilizing a mixed-methods approach, including surveys, key informant interviews, and focus group discussions, the research explores how...

Building upon an earlier version, I further review the key methods to evaluate transportation projects. Since transportation projects offer substantial social benefits and costs, it is vital to provide a comparative analysis on the commonly-used methods, i.e., which method(s) to use and under...

Building upon an earlier version, I further review the key methods to evaluate transportation projects. Since transportation projects offer substantial social benefits and costs, it is vital to provide a comparative analysis on the commonly-used methods, i.e., which method(s) to use and under...

This paper addresses the problem of measuring the welfare benefits of a transport improvement. We formulate and analyze a rich spatial model that allows for spillovers, matching and income tax, in a setting with multiple work and residential locations and very general worker heterogeneity. The...

A number of highly cited papers by Flyvbjerg and associates have shown that ex ante infrastructure appraisals tend to be overly optimistic. Ex post evaluations indicate a bias where investment costs are higher and benefits lower on average than predicted ex ante. These authors argue that the...

This paper provides a brief overview of the concept of value of time (VOT), in the context of toll road schemes. VOT analysis determines the tradeoffs travelers make between time and tolls. The analysis is very important when considering the choice between tolled and un-tolled alternatives....

This paper addresses the problem of measuring the welfare benefits of a transport improvement. We formulate and analyze a rich spatial model that allows for spillovers, matching and income tax, in a setting with multiple work and residential locations and very general worker heterogeneity. The...

This study empirically investigates the causal relationship between mineral exploration and environmental pollution in Nigeria with specific focus on natural gas and crude oil in Niger Delta region. The model of Granger causality tests was used. Quarterly data covering 2008 and 2009 were used in...

This study empirically investigates the causal relationship between mineral exploration and environmental pollution in Nigeria with specific focus on natural gas and crude oil in Niger Delta region. The model of Granger causality tests was used. Quarterly data covering 2008 and 2009 were used in...

This paper gives a theoretical proof for a question of constitutional law namely the principle of the separation of powers (SP). By defining a democratic process to be permissive (P) and separable (S) it proves that SP is a democratic, S & P, outcome.