The Saudi Central Bank and the riyal

The institution and its two rates 

The Saudi Central Bank, long known by the initials of its former name as the monetary agency, is the monetary authority of Saudi Arabia and among the oldest central banks in the Gulf. It operates two headline rates rather than one, and the pair function as a corridor around the money market.

• The repurchase rate, at which the central bank provides liquidity to banks against collateral. It sits above the market rate and functions as a ceiling, since no bank needs to pay more in the market than it can pay here.
• The reverse repurchase rate, at which banks place surplus liquidity with the central bank. It sits below and functions as a floor, since no bank will lend into the market below what it can earn risk free here.

Which of the two is the operative rate depends on whether the banking system is short of or flush with liquidity, exactly as it does in a euro area style corridor. In a system with surplus reserves the floor rate is the one that anchors market pricing; in a system that needs to borrow, the ceiling binds. Announcements typically change both together, preserving the width of the corridor.

The peg and the calendar it imposes 

The riyal has been fixed against the United States dollar at an unchanged parity since the middle of the nineteen eighties, and the arrangement is one of the longest continuously maintained pegs among sizeable economies. As with any credible fixed rate accompanied by open capital movement, the domestic policy rate cannot durably diverge from the anchor's, because a persistent differential would produce flows the central bank would have to absorb out of reserves.

The practical result is that the Saudi rate announcement is a derived calendar entry. It follows a United States Federal Reserve decision, usually within hours, and it is published as a short statement. There is no domestic projection round, no dot plot, no press conference and no published vote, because there is no domestic decision of that kind to explain. The scheduled event that determines the direction of riyal interest rates takes place in Washington.

One nuance is worth recording, because it distinguishes the riyal from a mechanically identical peg. On occasion the central bank has moved its rates by a different increment from the anchor's, or moved only one of the two, adjusting the corridor to domestic liquidity conditions while leaving the peg untouched. A peg constrains the average level of domestic rates over time; it does not remove every degree of freedom at every meeting.

The monthly statistics 

Beyond rate announcements, the central bank publishes a monthly statistical bulletin that is the principal public window onto the Saudi financial system. Several of its series are watched outside the country.

• Net foreign assets. The reserve position standing behind the peg, and the series most directly related to the commitment's backing.
• Bank deposits and bank credit to the private sector. The transmission of the monetary stance into domestic lending, and a read on non-oil activity that does not depend on a survey.
• Money supply aggregates and government deposits at the central bank, which move with the fiscal position as oil receipts arrive and are spent.
• The local interbank offered rate, a benchmark that reflects domestic liquidity and can drift relative to the anchor's equivalent benchmark.

Separately, the General Authority for Statistics publishes consumer prices, gross domestic product and labour market data, and the Ministry of Finance publishes quarterly budget statements and an annual budget. The oil production figures that matter most for the fiscal position are reported through the producer group and through secondary industry sources rather than by the central bank.

Oil, the budget and the sovereign issuer 

Saudi Arabia is the largest exporter of crude oil, its export receipts are invoiced in dollars, and hydrocarbon revenue remains the largest single contributor to government income notwithstanding a substantial diversification programme. Analysts commonly refer to a fiscal breakeven oil price, the price at which the budget would balance at a given level of spending and production. It is an estimate produced by outside institutions rather than a published official figure, it depends on assumptions about both spending and volume, and different estimators publish materially different numbers for the same year.

The kingdom is also a regular sovereign issuer in international debt markets and a large sponsor of domestic investment through its sovereign wealth vehicle. Both facts connect the fiscal cycle to instruments quoted well outside the region: sovereign bond spreads, regional equity indices and the currency forwards on the pegged pair all reflect a view about the same external position.

How the regime is conventionally read 

The conventions mirror those applied to any long-standing peg. Forward points on the pegged pair are read as the one liquid place where a view about the regime or about domestic funding can be expressed. Reserve adequacy and net foreign assets are read as the standing measure of what backs the commitment. The gap between the local interbank benchmark and the anchor's is read as domestic liquidity rather than as policy. And sovereign credit spreads are read alongside the oil price, since the two are related through the same fiscal channel.