NPWD definition
Examples of NPWD in a sentence
We will statistically review this method in two ways: Reviewing the use of averaged NPWD:ONS percentage presence: To understand the extent to which the averaged percentages (of NPWD:ONS presence in each SIC code) used by Defra in the Impact Assessment can be considered representative of the true presence of companies in both NPWD and ONS data, we will calculate the standard error of means.
We have enquired with the Environment Agency and employee numbers are not required to be reported by obligated producers to the NPWD.
Therefore we propose applying ONS data on average employee numbers per SIC code to the existing NPWD database.
This methodology achieved its estimations of company numbers below the de-minimis threshold by assuming they would be present in similar proportions to the percentage of companies appearing in both National Packaging Waste Database (NPWD) and Office for National Statistics (ONS) data above the de-minimis threshold.
Based on our previous experience working with NPWD data we understand that it is possible for this data to be made available, subject to suitable confidentiality agreements.
We anticipate the NPWD providing a considerable proportion of this data – specifically producer types, turnover and packaging tonnages.
An alternative way of constructing average number of employees for different turnover and packaging handled intervals, could be to combine ONS data on average number of employees per organizations by 2, 3 and 5-digit SIC codes with the data from the NPWD based on reported SIC codes for each producer.
However, as discussed above, the NPWD does not hold any information on number of employees for individual businesses.
The above regression model can also be estimated using the panel data approach as the data from NPWD provides packaging handled data for several years (2009 onwards).
For this we will first develop econometric models for the number of producers with tonnages of packaging handled and annual turnovers above the threshold values based on the data from NPWD, and other sources such as the ONS, BEIS, etc.