Tag Archives: payment systems

The Eurosystem: Part 2

In a post last week – The Eurosystem: Part 1, I went into the Euro Area payment system TARGET2 and touched upon domestic payments and implementation of monetary policy in the Euro Area. This post takes off from their to discuss cross-border flows. There are two reasons for looking into this is:

  1. to understand the flow-of-funds in the Euro Area – in particular current balance of payments and balance of payments financing flows;
  2. to understand how the Eurosystem – the ECB and the 17 National Central Banks (NCBs) work together.

Suppose a Firm F (F for France) banking at BNP Paribas wants to send a payment of €1m to a Firm G (G for Germany) banking at Deutsche Bank. How do the funds flow? In Part 1, I discussed how funds flow for domestic payments, but here two nations are involved and hence is likely to be more complicated. The various institutions involved in this transaction are

  1. Firm F
  2. BNP Paribas
  3. Banque de France, France’s NCB
  4. Deutsche Bundesbank, Germany’s NCB
  5. Deutsche Bank
  6. Firm G
  7. European Central Bank (ECB)

To work out how the funds flow and what effects it has on the balance sheets of these institutions, it is again useful to get into the Eurosystem legal framework as we did in Part 1.

According to the Guideline of European Central Bank of 30 December 2005 on a Trans-European Automated Real-time Gross settlement Express Transfer system (TARGET) (ECB/2005/16) Article 4(b)1&2  (link):

and according to Article 4(c)2:

Further, according to Article 4(d)2:

So the NCBs and the ECB have accounts at each other and grant each other unlimited and uncollateralized credit! i.e., they allow all funds to go through. This was shocking when I first discovered this from the same document but later realized it makes sense. There is one more rule that is still missing – how the NCBs settle with each other.

According to the European Central Bank Annual Report 2010, Accounting Policies, Page 219:


Intra-ESCB transactions are cross-border transactions that occur between two EU central banks. Intra-ESCB transactions in euro are primarily processed via TARGET2 – the Trans-European Automated Real-time Gross settlement Express Transfer system (see Chapter 2 of the Annual Report) – and give rise to bilateral balances in accounts held between those EU central banks connected to TARGET2. These bilateral balances are then assigned to the ECB on a daily basis, leaving each NCB with a single net bilateral position vis-à-vis the ECB only. This position in the books of the ECB represents the net claim or liability of each NCB against the rest of the ESCB. Intra-Eurosystem balances of euro area NCBs vis-à-vis the ECB arising from TARGET2, as well as other intra-Eurosystem balances denominated in euro (e.g. interim profit distributions to NCBs), are presented on the Balance Sheet of the ECB as a single net asset or liability position and disclosed under “Other claims within the Eurosystem (net)” or “Other liabilities within the Eurosystem (net)”. Intra-ESCB balances of non-euro area NCBs vis-à-vis the ECB, arising from their participation in TARGET2, are disclosed under “Liabilities to non-euro area residents denominated in euro”.

Using these rules and procedures, we can work out the example presented at the beginning of this post.

At the initiation of the payment of  €1m by Firm F, BNP Paribas will debit Firm F’s account €1m, Banque de France will debit BNP Paribas’ account €1m, Deutsche Bundesbank will credit Deutsche Bank’s account €1m and Deutsche Bank will credit Firm G’s account €1m. There remains the settlement between Banque de France and Deutsche Bundesbank and intraday, they settle bilaterally and then settle at the ECB at the end of the day. An important point however is that when NCBs settle with the ECB, they do not need to provide collateral. Also, in principle the overdraft facility provided by the ECB is unlimited.

Some clarifications. How did NCB provide intraday credit to BNP Paribas? The answer is quite simple: Ex Nihilo, at the stroke of  a pen, rather automatically via the system’s computers! The same with Deutsche Bundesbank – it provided Deutsche Bank with settlement balances in the same manner, and so did Deutsche Bank provide €1m of extra deposits to its customer Firm G. And finally at the end of the day, the ECB does the settlement between the NCBs on its books.

However, this is not the end of the story. During the day, there are payments in all directions but let us ignore that. So BNP Paribas finds itself with a positive intraday credit of €1m from Banque de France. Intraday overdrafts were discussed in Part 1 and I repeat the relevant part here. Toward the end of the day, banks may want to instead borrow from the rest of the financial system, instead of relying on central bank credit because the latter is free of interest only intraday and is charged an interest rate equal to that of the marginal lending facility overnightTypically, this poses no problem because some banks may have excess reserves which they may want to lend out because keeping it deposited at the central bank will pay an interest equal to that of the deposit facility which is lower. So typically, banks would retire intraday credit toward the end of the day and borrow funds from the rest of the financial system.

In this case, BNP Paribas would have to borrow abroad because other banks do not have excess reserves in the example. Deutsche Bank will be looking to lend the funds at a higher rate than depositing it at Bundesbank which pays lower interest and we have a situation in which BNP Paribas will borrows funds from Deutsche Bank. The interest rate on this lending/borrowing will likely be the near the ECB main refinancing rate – else, the ECB will intervene to bring the EONIA to the main refinancing rate – its target. It is important to remember that this causes the reversal of the balance sheet changes of the ECB and the NCBs – changes which happened when funds flowed from Firm F to Firm G.

All this is when there is no stress in the markets. During periods of crisis, banks in some affected regions may see deposits flowing out due to worries about credit risk. Banks which are losing funds are unable to borrow funds from abroad and this leaves banks indebted to their home NCBs and the NCBs have a large Other liabilities within the Eurosystem (net). 

The Bundesbank Monthly Report March 2011 has a special topic The dynamics of the Bundesbank’s TARGET2 balance on Page 34 and has a good discussion. It has two nice charts, one of them is settlement balances of each NCB in the Eurosystem

This was at the end of 2010 and would have worsened in recent times and shows the amount of stress in the banking system.

In Part 3, I hope to discuss the implementation of monetary policy – i.e., the ECB procedures on setting the interest rate and the differences and similarities with the American system.

Hopefully there is a Part 4 which goes into the “sovereign debt” crisis – which really is a balance of payments crisis worsened by the fact that Euro Area national governments do not have a lender of the last resort.

Updated 6 Jun 2014 5:15pm UTC

The Eurosystem: Part 1

The Eurosystem consists of the European Central Bank (ECB) and 17 National Central Banks (NCBs) of the member nations. The purpose of this post (and some that will follow) is to explain how the RTGS payment and settlement system called TARGET2 works in order to understand the flow of funds within the Euro Area. The purpose is also to show that money is endogenous in the Euro Area, that it cannot be otherwise and describe the Euro Area economic dynamics in the money endogeneity framework

First consider payments within a nation, i.e., domestic payments. In the Euro Area, it happens exactly in the way as in any nation. I had a post covering this – Payment Systems And Settlement. An example illustrates this:

Suppose a household A holding deposits in Bank A in Spain wishes to make a payment of €100 to an institution B banking at Bank B. The household A will give an instruction to her Bank A to transfer funds to Bank B. Assuming this goes through, the Spanish central bank Banco de Espana will debit Bank A’s account and credit Bank B’s account. Bank B will credit institution B’s account €100. If Bank A has insufficient funds at Banco de Espana, the latter will provide the former intraday credit free of charge.

So transactions such as the above give rise to payment flows in all directions. To understand how the Eurosystem handles this, it is useful to go into some rules.

The Guideline of European Central Bank of 30 December 2005 on a Trans-European Automated Real-time Gross settlement Express Transfer system (TARGET) (ECB/2005/16) 3(f) 1 says (link)

and 3(f)3 says

and finally 3(f)5 says

So within the day banks can go into overdraft at the home central bank by pledging collateral. In practice, banks have more collateral at the central bank to cover for daily fluctuations. Also, in the Euro Area, banks need to satisfy a reserve requirement of 2% which means that the amount of reserves deposited at the NCB should be at least 2% of the deposit liabilities. How do banks get the reserves when they lose reserves? During the day, the intraday credit itself provide the reserves. (Loans make deposits!). However toward the end of the day, banks may want to instead borrow from the rest of the financial system, instead of relying on central bank credit because the latter is free of interest only intraday and is charged an interest rate equal to that of the marginal lending facility overnight. Typically, this poses no problem because some banks may have excess reserves which they may want to lend out because keeping it deposited at the central bank will pay an interest equal to that of the deposit facility which is lower. So typically, banks would retire intraday credit toward the end of the day and borrow funds from the rest of the financial system.

An exception to the above arises during periods of market stress or crisis, when banks prefer to not lend the excess funds due to credit risks and are happy to keep funds deposited at the central bank despite earning lower interest.

As banks create more money by lending (more credit to be precise), the reserve requirement of the whole banking system would increase. How do banks in the Euro Area get more reserves?

It is useful here to distinguish between two types of monetary systems – overdraft and asset-based. In the former, banks as a whole get all the reserves directly by borrowing from the central bank (provided they pledge good collateral) and in the latter, the central bank would create reserves required by the banking system by engaging in permanent open market operations or outright operations, typically purchasing government bonds. The Euro Area monetary system is best described by the former and Anglo-Saxon monetary systems such as one in the United States is best described by latter. Even in the latter, the Federal Reserve does provide direct credit to banks but these are retired quickly. The distinction can be made by looking at the balance sheet of the central bank.

We are yet to see the Eurosystem being described as a whole, but for our purpose of clarifying how an overdraft system looks, it is sufficient to just take a glance at the consolidated balance sheet to verify. The Eurosystem balance sheet near the end of 2006 looked like this (link):

(click to enlarge)

The item rounded in red is €450, 540 million which is a big proportion of the total size of the balance sheet, and one doesn’t see this for the Federal Reserve (in normal circumstances).

Since the Eurosystem is an overdraft type, the funds obtained have to be provided by direct lending by the Eurosystem. This is done mainly via two types of operations – Main Refinancing Operations (MROs), and Long Term Refinancing Operations (LTROs), where the Eurosystem conducts an auction to lend the whole banking system. For the former, the auctions are held weekly and the lending is for one week. LTROs, it is typically conducted every month and the duration of refinancing is three months. As the names suggest, MROs are used mostly.

This will conclude my post. The posts following this will look at cross-border flows of funds and government accounts. They (either one post or two) will attempt to provide the reader an idea of how cross-border dynamics are important for the Euro Area.

Update: Corrected the discussion on frequency and duration of LTROs in the second last para.

Payment Systems And Settlement

Few posts back, in More On Horizontalism, it was mentioned how loans make deposits. The unanswered question in the post was If loans make deposits, why do banks require funding? That will still be left unanswered for the time being, but in this post we will discuss simple payment systems and settlement. Hopefully it was clear in the post how banks occupy a central position in the process of money creation.

Before we go into payment systems, first let me introduce to Augusto Graziani’s concept of money, which I really like [1].

  1. since money cannot be a commodity, it can only be a token money;
  2. the use of money must give rise to an immediate and final payment and not a simple commitment to make a payment in the future; and
  3. the use of money must be so regulated as to give no privilege of seignoriage to any agent

So the process of settlement involves more than two agents and in most cases, the payer, the payee and a bank. Even in cases, when the payer pays the payee in currency notes, the transaction secretly involves central bank money because currency notes are liabilities of the central bank.

How do banks settle among themselves? A simpler but not often asked question is why banks need to “settle” amongst themselves? This will be answered soon but the answer to the first question is central bank money. Banks cannot keep telling each other “I owe you”. Central banks haven’t existed since the beginning of time, and banks would earlier settle among themselves in gold. Why gold? is a slightly difficult to answer but at this point it’s sufficient to say that the properties of gold have made it attractive for settlement. 

Before we get into payment systems, let us for the sake of formality, categorize payments into two types [2]- credit transfers (“push”) and debit transfers (“pull”). Most transfers are credit transfers and are initiated by the payer. Debit transfers are transfers initiated by the payee. Example: a cell phone company making a payment instruction to its customer’s bank to transfer funds to its own bank account at the end of a bill cycle to settle the monthly bill, after  the customer has allowed the pull transaction to take place periodically. We will worry about only push transactions.

The following diagram from GAO’s report Payments, Clearance And Settlement – A Guide To The Systems, Risks And Issues is a good illustration of a transfer transaction. (Click for higher resolution version)

Technology has advanced so much that such payments happen fast! RTGS – Real Time Gross Settlement is a feature banks offer (for a minimum transaction size) in which transactions are settled in real-time with instant irrevocable finality. In the Euro Area, the European System of Central Banks have developed a system called TARGET2, which I believe settles all payments real-time.

So in the above diagram, customer A who banks at Bank A transfers funds to customer B who banks at Bank B. After the payment instruction is initiated, Bank A owes $1m to Bank B. Since everyday, there are zillions of transactions happening in both ways, banks try to keep a balance at the central bank.  These are called reserves but modern central bank articles use the phrase settlement balances more often these days.

What happens if banks do not have sufficient funds at the central bank? Is that allowed? Since central banks require that funds be transferred as soon as possible, they allow banks to go into an overdraft. How much overdraft does the central bank provide? In principle – as much as possible, provided banks provide good quality collateral. Central banks have standards on what collateral is acceptable and these may change from time to time. Typical requirements include good rating by the rating agencies. Since the market value of the collateral can fluctuate and it is risky for the central bank, they require a haircut. This roughly means that for borrowing (i.e., going into an overdraft at the central bank) say $1m, banks need to provide a collateral whose market value is say $1.1m. This is a topic in itself, and no more will be said for now – maybe a good topic for a future post!

This brings me to the final part of this post. What about settlement between a bank and its customers? Bank employees, for example, are encouraged to open an account at the same bank and their monthly salary is credited at the end/beginning of the month. Is this settlement? A rough answer to this question is that bank money is convertible. There is nothing preventing a bank customer from transferring funds to another bank. If the customer does so, the diagram above shows that the bank has to settle the amount with another bank or the central bank and has to attract funds from various sources. Else, the bank has to offer an alternative to the customer such as paying interest on the deposits and requiring in exchange that the customer is not able to withdraw funds for a fixed term. Needless to say, the bank also needs to maintain good relations with the customer.

Finally, the topic of international money flows  is dear to me and will be taken up in another post.


  1. Augusto Graziani, The Theory Of The Monetary Circuit, Economies et Societes, 1990. Available at the UMKC course site
  2. Dominique Rambure, Alec Nacamuli, Payment Systems: From Salt Mines To The Board Room, Palgrave Macmillan, 2008.