Swain: Stata module to correct the SEM chi-square overidentification test in small sample sizes or complex models. Statistical Software Components S457617, Boston College Department of Economics.

Swain corrects the chi-square overidentification test (i.e., likelihood ratio test of fit) for structural equation models whethr with or without latent variables. The chi-square statistic is asymptotically correct; however, it does not behave as expected in small samples and/or when the model is complex (cf. Herzog, Boomsma, & Reinecke, 2007). Thus, particularly in situations where the ratio of sample size (n) to the number of parameters estimated (p) is relatively small (i.e., the p to n ratio is large), the chi-square test will tend to overreject correctly specified models. To obtain a closer approximation to the distribution of the chi-square statistic, Swain (1975) developed a correction; this scaling factor, which converges to 1 asymptotically, is multiplied with the chi-square statistic. The correction better approximates the chi-square distribution resulting in more appropriate Type 1 reject error rates (see Herzog & Boomsma, 2009; Herzog, et al., 2007).

Business Organization and Coordination in Marketing Specialty Hogs: A Comparative Analysis of Two Firms from Iowa, November 2005

We study business organization and coordination of specialty-market hog production using a comparative analysis of two Iowa pork niche-marketing firms. We describe and analyze each firms management of five key organizational challenges: planning and logistics, quality assurance, process verication and management of �credence attributes,� business structure, and profit sharing. Although each firm is engaged in essentially the same activity, there are substantial differences across the two firms in the way production and marketing are coordinated. These differences are partly explained by the relative size and age of each firm, thus highlighting the importance of organizational evolution in agricultural markets, but are also partly the result of a formal organizational separation between marketing and production activities in one of the firm.

Report on Special Investigation of the Keokuk County Information Technology Department, For the Period October 14, 2002 through March 14, 2005

Other Audit Reports - Special Investigation

Iowa Department of Transportation Office of Contracts Letting Summary - July 1, 2004 through June 30, 2005

A summary of the regularly scheduled lettings and emergency/special lettings held by the Iowa Department of Transportation for construction and maintenance work during the period July 1, 2004, through June 30, 2005.

Iowa Department of Education Performance Report, FY 2005

Agency Performance Report

Iowa Department of Administrative Services Agency Performance Plan, FY 2004

Agency Performance Plan

Iowa Department for the Blind Performance Plan, FY 2004

Agency Performance Plan

Iowa Department for the Blind Performance Plan, FY 2005

Agency Performance Plan

Department of Commerce Iowa Division of Banking Performance Report, FY 2004

Agency Performance Report from the Banking Division

Department of Commerce Iowa Division of Banking Performance Report, FY 2005

Agency Performance Report from the Banking Division

Department of Commerce Iowa Credit Union Division Performance Report, FY 2004

Agency Performance Report from the Credit Union Division

Department of Commerce Iowa Credit Union Division Performance Report, FY 2005

Agency Performance Report from the Credit Union Division

Department of Commerce Iowa Insurance Division Performance Report, FY 2004

Agency Performance Report from the Insurance Division

Department of Commerce Iowa Professional Licensing and Regulation Division Performance Report, FY 2004

Agency Performance Report from the Professional Licensing and Regulation Division

Department of Commerce Iowa Utilities Board Performance Report, FY 2004

Agency Performance Report from the Iowa Utilities Board