Administrative agencies frequently use guidance documents to set policy broadly and prospectively in areas ranging from Department of Education Title IX enforcement to Food and Drug Administration regulation of direct-to- consumer pharmaceutical advertising. In form, these guidances often closely resemble the policies agencies issue in ordinary notice-and-comment rulemaking. However, guidances ...

This feature explores the operation of individual markets. Patterns of behavior in markets for specifi c goods and services offer lessons about the determinants and effects of supply and demand, market structure, strategic behavior, and government regulation. Suggestions for future columns and comments on past ones should be sent to James R. Hines Jr., Professor of Economics, University of Mich...

"Slime" played a brief and spectacular role in the 19th century founded by the theory of primordial slime by Ernst Haeckel. However, that substance was never found and eventually abandoned. Further scientific attention slowly began in the 1930s referring to slime as a microbial product and then was inspired by "How bacteria stick" by Costerton et al. in 1978, and the matrix material was conside...

registration institution is important institution that guarantees economic and legal security. human societies always noted this point and then created several registration systems and practiced one of theses for achievement to the security. but lack of attention and knowledge about effects and aims of registration real properties and their documents of transactions and therefore violating thes...

Environments for Safety Regulations A common factor in whether regulation is used is the seriousness of the outcome being addressed in terms of human health. For this reason regulation is more common in transportation and the workplace, where the potential for fatal injury is perceived to be relatively great, and less common in the home and in sports environments, where the potential for fatal ...