Susan Christoffersen Phd

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This page contains links to our project's status reports. 

For information about scheduled events and project milestones, see our Schedule page.

NTC Data Collection and Analysis

Dr. Christoffersen has added two new investigators to this project, upon the completion of preliminary work by Drs. Datta and Malhotra.  Mikail Kouliavtsev will pursue a different approach for estimation using the panel data that will include two-stage estimation, with growth rates to correct for multi-colinearity.  The firm analysis will be taken over by Philip Russel who will bring a Finance perspective to the analysis of firm survival.  Dr. Christoffersen continues to collect the relevant new literature and is compiling the datasets used in the project analyses, including the Compustat database, which has been installed and is being used to run various reports using firm level data.  Dr. Christoffersen visited textile mills to interview financial officers and product development people, June 2001; this information supplements and informs the further statistical investigation of industry conditions.  

Data sources at the National Bureau of Economic Research and the Bureau of the Labor Statistics have been collected and organized along with the data on Textile mills.  The data contains information about employees, payroll information, number of hours of labor input in the textile industry, value added by manufacture, and new capital expenditures.  The data pertains to Broadwoven fabric mills (cotton, manmade fiber, and silk, wool), Narrow fabric mills, Knitting mills (women’s hosiery, except socks, hosiery, knit outwear mills, knit underwear mills, lace and warp knit fabrics mills, knitting mills, n.e.c.), Textile finishing, except wool (finishing plants, cotton, finishing plants, manmade, finishing plants, n.e.c.), carpets and rugs, yarn and thread mills (yarn spinning mills, throwing and winding mills, and thread mills), miscellaneous textile goods (coated fabrics, not rubberized, Tire cord and fabrics, Nonwoven fabrics, Cordage and twine, and Textile goods, n.e.c.).  The data set is for period 1992 to 1996.  Data from Compustat is supplemented with data is from the annual survey of manufacturers, published by the U.S. Department of Commerce. The data will be used to build “Total Factor Productivity Index” and also to study the factors that influence/define total factor productivity in the U.S. Textile Industry.

Dr. Russel: Anecdotal evidence suggests that the U.S. textile industry is in a downward spiral with lackluster profitability and record plant closings.  To date, no formal attempt has been made to investigate whether such seemingly poor performance is due to firm-specific factors or due to overall economic and trade environment facing the firms (over which admittedly, firms have little or no control).  Philip Russel will provide a financial perspective by performing a detailed cross-sectional and time series analysis at the firm-level spanning a ten-year  period. 1993-2002. This will be complemented with the study of macro environment facing the firms competing in the textile industry.  Taken together, financial and economic analysis will enhance our understanding of the performance of various firms in the industry and provide a useful framework for identifying the causes of firm failure and survival. This will enable us to recommend suitable strategies for sustaining profitability in the long-run and for equipping firms to better insulate themselves from the unexpected (and uncontrollable) shocks.

Dr. Kouliavtsev: will work on constructing reliable estimates of total factor productivity for the textile industry. These estimates can then be used to estimate a model which includes the presence of foreign competition (imports) and its effect on productivity. The results will help us understand the dynamic response of firms in the textile industry to increasing import competition. Also, this framework will allow us to measure and evaluate the effects of investment in R&D and information technology. Panel data methods will be employed to control for fixed and random effects in the sample.

Dr. Malhotra has finished analyzing panel data.  We model growth in productivity as a function of capital-labor ratio, export market, and tariff policy, using panel data for 18 sectors of the textile industry.  The model shows growth in productivity to be negatively related to capital-labor ratio and tariff rates (statistically significant) and positively related to export markets and economies of scale (statistically significant).  Having been corrected for autocorrelation, this panel analysis is considered over. 

Dr. Datta has concluded her work at the industry level. She has run regressions to study growth effects in addition to level effects studied initially.  This includes looking at the role of economies of scale (firm size), import penetration, R&D employment and IT in explaining total factor productivity growth in the U.S. Textile Industry. The results from this work will be presented at a Productivity Studies conference in June.  We added data on R&D expenditures for the industry, as well as patent data, further enriching this study. This supplements the initial industry trends have been plotted such as productivity indexes and IT expenditures, at a two digit level SIC code.