Sample Environment Protection Expenditure Survey

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Description

The sepe data set is a sample of the pilot survey in 1993 of the Swiss Federal Statistical Office on environment protection expenditures of Swiss private economy in the previous accounting year. The units are enterprises, the monetary variables are in thousand Swiss Francs (CHF). From the original sample a random subsample was chosen of which certain enterprises were excluded for confidentiality reasons. In addition, noise has been added to certain variables, and certain categories have been collapsed. The data set has missing values. The data set has first been prepared for the EU FP5 project EUREDIT and later been data protected for educational purposes.

Usage

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Format

A data frame with 675 observations on 23 variables.

idnr

identifier (anonymous)

exp

categoric variable: 1 = 'non-zero total expenditure', 2 = 'zero total expenditure', 3 = 'no answer to the question'

totinvwp

total investment for water protection

totinvwm

total investment for waste management

totinvap

total investment for air protection

totinvnp

total investment for noise protection

totinvot

total investement for other environmental protection areas

totinvto

overall total investment in all environmental protection areas

totexpwp

total current expenditure in environmental protectiona area water protection

totexpwm

total current expenditure in environmental protectiona area waste management

totexpap

total current expenditure in environmental protectiona area air protection

totexpnp

total current expenditure in environmental protectiona area noise protection

totexpot

total current expenditure in other environmental protectiona

totexpto

overall total current expenditure in all environmental protectiona

subtot

total subsidies for environmental protection received

rectot

total receipts from environmental protection

employ

number of employees

sizeclass

size class (according to number of employees)

stratum

stratum number of sample design

activity

code of economic activity (aggregated)

popsize

number of enterprises in the population-stratum

popempl

number of employees in population activity group

weight

sampling weight (for extrapolation to the population)

Details

The sample design is stratified random sampling with different sampling rates. Use package survey or sampling to obtain correct point and variance estimates. In addition a ratio estimator may be built using the variable popemple which gives the total employment per activity.

There are two balance rules: the subtotals of the investment variables should sum to totinvto and the expenditure subtotals should sum to totexpto.

The missing values stem from the survey itself. In the actual survey the missing values were declared as ”guessed” rather than copied from records.

The sampling weight weight is adjusted for non-response in the stratum, i.e. weight=popsize/sampsize.

References

Swiss Federal Statistical Office (1996), Umweltausgaben und -investitionen in der Schweiz 1992/1993, Ergebnisse einer Pilotstudie.

Charlton, J. (ed.), Towards Effective Statistical Editing and Imputation Strategies - Findings of the Euredit project, unpublished manuscript available from Eurostat and http://www.cs.york.ac.uk/euredit/

Examples

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data(sepe)
## maybe str(sepe) ; plot(sepe) ...