Iowa Airport Directory, 2003 ***NOTE*** This document is for historical viewing, the internal information is no longer current or accurate! ***NOTE*** Current information can be found at http://www.iowadot.gov/aviation/aircraftregistration/registration.aspx ***NOTE***

Iowa has 8 commercial service airports and 105 general aviation airports, of which three serve as reliever airports. ***NOTE*** This document is for historical viewing, the internal information is no longer current or accurate! ***NOTE*** Current information can be found at http://www.iowadot.gov/aviation/aircraftregistration/registration.aspx ***NOTE***

Iowa Aviation Bulletin, Winter 2002-2003

Quarterly newsletter published by the Iowa Department of Transportation's Office of Aviation that contains information of interest to aviation-related persons and organizations.

Iowa Aviation Bulletin, Spring 2003

Quarterly newsletter published by the Iowa Department of Transportation's Office of Aviation that contains information of interest to aviation-related persons and organizations.

Iowa Aviation Bulletin, Summer 2003

Quarterly newsletter published by the Iowa Department of Transportation's Office of Aviation that contains information of interest to aviation-related persons and organizations.

Iowa Aviation Bulletin, Fall 2002

Quarterly newsletter published by the Iowa Department of Transportation's Office of Aviation that contains information of interest to aviation-related persons and organizations.

Iowa Aviation Bulletin, Winter 2003-2004

Quarterly newsletter published by the Iowa Department of Transportation's Office of Aviation that contains information of interest to aviation-related persons and organizations.

Iowa Aviation Bulletin, Fall 2003

Quarterly newsletter published by the Iowa Department of Transportation's Office of Aviation that contains information of interest to aviation-related persons and organizations.

Iowa Aviation Bulletin, Spring 2004

Quarterly newsletter published by the Iowa Department of Transportation's Office of Aviation that contains information of interest to aviation-related persons and organizations.

Iowa Aviation Bulletin, Summer 2004

Quarterly newsletter published by the Iowa Department of Transportation's Office of Aviation that contains information of interest to aviation-related persons and organizations.

Iowa Aviation Bulletin, Fall 2004

Quarterly newsletter published by the Iowa Department of Transportation's Office of Aviation that contains information of interest to aviation-related persons and organizations.

Iowa Aviation Bulletin, Winter 2004-2005

Quarterly newsletter published by the Iowa Department of Transportation's Office of Aviation that contains information of interest to aviation-related persons and organizations.

Quarterly Census of Employment and Wages, Final County Data, First Quarter, 2004

First Quarterly County information for Census of Employment & Wage, County

Quarterly Census of Employment and Wages, Final Statewide Data, First Quarter, 2004

First Quarterly County information for Census of Employment & Wage, Statewide

Iowa Aviation Bulletin, Spring 2005

Quarterly newsletter published by the Iowa Department of Transportation's Office of Aviation that contains information of interest to aviation-related persons and organizations.

Labeling Regulations and Segregation of First- and, Second-Generation Genetically Modified Products: Innovation Incentives and Welfare Effects, April 2005

We review some of the most significant issues and results on the economic effects of genetically modified (GM) product innovation, with emphasis on the question of GM labeling and the need for costly segregation and identity preservation activities. The analysis is organized around an explicit model that can accommodate the features of both first-generation and second-generation GM products. The model accounts for the proprietary nature of GM innovations and for the critical role of consumer preferences vis-à-vis GM products, as well as for the impacts of segregation and identity preservation and the effects of a mandatory GM labeling regulation. We also investigate briefly a novel question in this setting, the choice of “research direction”when both cost-reducing and quality-enhancing GM innovations are feasible.