These values were derived by use of adjustment factors to exclude freight, insurance, and other charges incurred in moving goods to the port of export. This adjustment is made to convert the values to an approximation of the producers' value of exported goods. Current adjustment factors are based on data for 1984 which are published in Origin of Exports of Manufactured Products, M84 (AS)-5, appendix B. The adjustment factor for this report is 0.8576. 6 Source: Bureau of the Census report IM 146, U.S. General Imports for Consumption. Apparent consumption is derived by subtracting exports from the total of manufacturers' shipments plus imports. Not exactly comparable as imports and exports include some nonelectric as well as electric blankets. 2 For comparison of SIC-based product codes with Schedule B export numbers and TSUSA import numbers, see table 6. These values were derived by use of adjustment factors to exclude freight, insurance, and other charges incurred in moving goods to the port of export. This adjustment is made to convert the values to an approximation of the producers' value of exported goods. Current adjustment factors are based on data for 1984 which are published in Origin of Exports of Manufactured Products, M84 (AS)-5, appendix B. The adjustment factor for this report is 0.8576. Source: Bureau of the Census report IM 146, U.S. General Imports for Consumption. Apparent consumption is derived by subtracting exports from the total of manufacturers' shipments plus imports. Not exactly comparable as imports and exports include some nonelectric as well as electric blankets. Product Table 6. COMPARISON OF STANDARD INDUSTRIAL CLASSIFICATION-BASED PRODUCT CODES, SCHEDULE B EXPORT NUMBERS, AND TSUSA IMPORT NUMBERS: 1987 Source: 1987 edition Schedule B, Statistical Classification of Domestic and Foreign Commodities Exported From the United States. Not exactly comparable as imports and exports include some nonelectric as well as electric blankets. DESCRIPTION OF SURVEY Scope of Survey. This survey covers manufacturers of electric housewares and fans in the United States. Survey Methodology. The statistics in this publication were collected by mail on Bureau of the Census annual Form MA36E, Electric Housewares and Fans. The survey panel includes all known manufacturers of electric housewares and fans, approximately 114 companies. Reliability of Data. Survey error may result from several sources: (1) inability to obtain information about all cases in the survey; (2) response errors; (3) definitional difficulties; (4) differences in the interpretation of questions; (5) mistakes in recording or coding the data obtained; and (6) other errors of collection, response, coverage, and estimation for missing data. These nonsampling errors also occur in complete censuses. Although no direct measurement of the biases due to nonsampling errors has been obtained, precautionary steps were taken in all phases of the collection, processing, and tabulation of the data in an effort to minimize their influence. A major source of bias in the published estimates is due to imputing data for nonrespondents, for late reporters, and for data which fail logic edits. Missing figures are imputed based on yearly movements shown by reporting firms. Imputation generally is limited to a maximum of 10 percent for any one data cell. Figures with imputation rates greater than 10 percent are footnoted. The imputation rate is not an explicit indicator of the potential error in published figures due to nonresponse, because the actual yearly movements for nonrespondents may or may not closely agree with the imputed movements. The range of difference between the actual and imputed figures is not precisely known but is assumed to be small. The degree of uncertainty regarding the accuracy of the published data, however, increases as the percentage of imputation increases. Figures with imputation rates above 10 percent should be used with caution. Revisions to Previous Period Data. Statistics for previous years may be revised as the result of corrected data from respondents, late reports for which imputations were made as described above, or other corrections. Figures which have been revised by more than 5 percent from previously published figures are indicated by footnotes. Revisions include changes to prior period data resulting from reconciliation of the results of this survey with the 1986 Annual Survey of Manufactures to correct differences in reported data between the two series and to identify and verify new establishments included in the scope of this survey. Table 3 presents a comparison of data from the two series by census product class following the reconciliation. Adjustment for Price Change. All dollar figures included in this publication are in current dollars; i.e., they have not been adjusted for price change. EXPLANATION OF TERMS Quantity and Value of Shipments. The figures on quantity and value of shipments represent physical shipments of all products sold, transferred to other establishments of the same company, or shipped on consignment, whether for domestic or export sale. The value represents the net sales price, f.o.b. plant, to the customer or branch to which the products are shipped, net of discounts, allowances, freight charges, and returns. Shipments to a company's own branches are assigned the same value as comparable sales to unaffiliated customers; i.e., the value includes an appropriate allocation of company overhead and profit. Products bought and resold without further manufacture are excluded. COMPARISON OF EXPORT, IMPORT, AND DOMESTIC OUTPUT DATA The Standard Industrial Classification (SIC) system used for domestic output and the statistical export and import commodity classifications were developed independently. This results in considerable difficulty in comparing the three types of data for many commodity areas. The domestic output classification is based on type of industry; on the other hand, the export and import classification system is more materials oriented. Also, there are a substantial number of imported commodities which have no comparable domestic output classification. The relationships shown in this report should be considered only as approximations, since, in addition to the problems mentioned above, there are also the following problems affecting the comparability of the three sets of data. Valuation. There are different methods of valuation for the three types of data: • Domestic Output. Valued at the point of production. It includes the net sales price, f.o.b. plant, after discounts and allowances, exclusive of freight charges and excise taxes. • Exports. Valued at the point of exportation. It includes the selling price, or cost if not sold, and inland freight, insurance and other charges to the export point. Estimated producers' values of exports have also been developed. These values more closely approximate the values reported for domestic output because they exclude freight, insurance, and other charges applied from the producing plant to the export point. |
