The correct answer is A.

Payment amounts and times for each processing step in the payment workflow are indeed the most accurate statistics for understanding intraday flows. Intraday flows refer to the movement of funds within a single trading day. Therefore, knowing the payment amounts and the times for each processing step can provide a detailed picture of how funds are moving throughout the day. This information can help banks manage their liquidity, identify potential bottlenecks in the payment workflow, and make more informed decisions about their operations.

Choice B is incorrect. While the time a payment was received or originated and the credit status of the payer can provide some insight into intraday flows, they do not offer as comprehensive a view as payment amounts and times for each processing step. The latter allows banks to track funds throughout their entire journey within a single trading day, providing more accurate insights.

Choice C is incorrect. Past credit position and any suspensions of the payment may be useful for assessing credit risk, but they do not directly contribute to understanding intraday flows. These statistics are more backward-looking and do not necessarily reflect current fund movements within a single trading day.

Choice D is incorrect. Information about payer and payee along with past credit position can be useful in assessing counterparty risk but it does not provide detailed insights into intraday flows. It lacks information on timing or amount of payments which are crucial for understanding movement of funds within a single trading day.

Things to Remember

• Understanding intraday flows is crucial for banks to manage their liquidity effectively and make informed decisions about their operations.
• Payment amounts and times for each processing step in the payment workflow provide a detailed picture of how funds are moving throughout the day.
• Tracking funds throughout their entire journey within a single trading day helps identify potential bottlenecks in the payment workflow.
• Assessing credit risk and counterparty risk are important aspects of risk management in banking operations.