Despite the significant literature as well as energy devoted to ethical review of research involving human subjects, little attention has been given to understanding the experiences of those who volunteer as human subjects. Why and how do they decide to participate in research? Is research...

There are claims that service roads (frontage roads) reduce the rent and value of adjacent commercial properties. Using Riyadh, the Capital of Saudi Arabia, as a case study, this research has found no statistically significant relationship between the presence of service roads and land values...