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IPS129 Claudia V. et al.
• A separately maintained database for enterprises that have previously
been identified through the FDI or Mergers and Acquisitions surveys.
This database includes minority share relationships that are not
included in the IDBR and D&B.
• The FDI population is also updated regularly using information from
the ONS Mergers and Acquisitions Survey, which is conducted on a
quarterly basis.
• FDI estimation methods predict values for all non-sampled businesses,
allowing for analysis of sampled and non-sampled businesses at a
microdata level.

Decision tree
The FDI population and IDBR were matched to produce a dataset of cross-
border FDI variables along with economic variables and UK employment and
turnover for enterprise groups in the inward FDI population. More detail on
the methods used to match the two dataset is available here.
It was also not possible to match all the inward FDI population to the IDBR,
as some entities did not have enterprise identifiers, such as banks and bank
holding companies (aggregates provided by the Bank of England), residential
property, and public corporations. There were also some enterprises in the
remainder of the FDI population that could not be linked to the IDBR – which
were part of the separately maintained FDI population. Domestic balance
sheet data are also not available via the IDBR; therefore, the decision tree
utilised turnover as a proxy for physical UK operations.
Utilising the data available, the below decision tree was produced utilising
the definition from the IMF Task Force on SPEs with data available at the time
of analysis.

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