SARB expands public finance statistics coverage
The South African Reserve Bank (SARB) will expand its public finance statistics in the Quarterly Bulletin to include public deposit-taking corporations (PDTCs). This follows an IMF recommendation to enhance international comparability and address significant data gaps.
Closing a critical data gap
The International Monetary Fund (IMF) recommended that the South African Reserve Bank (SARB) expand the coverage of its public finance statistics to include public deposit-taking corporations (PDTCs).
This aligns with the IMF's G20 Data Gaps Initiative, which underscores the need for comprehensive data.
PDTCs are defined as financial corporations controlled by general government units or other public corporations, whose principal activity is financial intermediation through deposits or close substitutes.
Previously, their exclusion created a significant data gap, limiting policymakers' and market participants' ability to assess financial stability risks and economic developments timeously and accurately.
The SARB has now incorporated financial statistics for PDTCs into the broader public finance statistics from fiscal 2009/10, enhancing coverage and reporting in line with international best practice and IMF guidance.
Methodology for comprehensive data
The update consolidates financial data from four PDTCs (SARB, Corporation for Public Deposits, Land and Agricultural Development Bank of South Africa, and South African Post Bank) with five existing public financial intermediaries.
This provides a sufficiently long and consistent time series for trend analysis.
As quarterly cash flow data for PDTCs were unavailable, annual data from audited financial statements were used to derive quarterly figures through temporal disaggregation.
The SARB selected a modified Denton method, known as Denton–Cholette, for estimating quarterly cash flow statistics, using quarterly statistics for the existing financial public intermediaries as indicator variables.
This method preserves short-term movements while minimising deviations between interpolated and known low-frequency series.
The inclusion of PDTCs results in a marked increase in both cash receipts from operating activities and total expenditure, highlighting their significant influence on aggregate cash flow and balance sheet data within the sector.
Enhanced transparency, sharper insights
This change significantly improves the completeness of South Africa's financial statistics, aligning them with international best practices.
By incorporating PDTCs, policymakers gain a more accurate view of financial stability risks and economic developments, crucial for informed decision-making.
While a technical adjustment, its impact on data quality and analytical depth is substantial.