. Definition: The Euro Interbank Offer Rate (Euribor) is the average rate of interest offered by a panel of major banks in Europe for lending and borrowing to one another in euros. It is calculated daily by the European Money Markets Institute (EMMI) using the average of quotes from the most creditworthy banks in the euro zone. 2. Background: The Euribor first appeared in October 1998. It is used to determine interest rates for maturities ranging from overnight to 12 months. An index called Eonia is calculated from overnight Euribor rates, and is used to set the Euro Short Term Rate (€STR). It remains one of the most influential interest rates worldwide. 3. Calculation & Validity: Euribor is calculated based on the average interest rate of a selected panel of major European banks. This panel is estimated to include over 40 different banks across the eurozone and is updated periodically to reflect changes in the market. The rate is calculated by Global Rate Set Systems Ltd. and published every day by 11:00 am CET. 4. Advantages: Euribor is highly reliable with an independent calculation and validation process. It is updated daily, providing both financial institutions and investors with an up-to-date snapshot of the euro money markets. Euribor's reliable data and efficient market structure is highly favored by traders, investors, and financial institutions across the euro zone. 5. Usage: Euribor is primarily used to calculate interest rates on mortgages, such as the average mortgage rate found in the fixed rate mortgage products. Euribor is also used as a rate of reference for loans and deposits, treasury bills and bonds. It is also used by the banking sector to set inter-bank rates. Euribor rates are commonly used as benchmarks for pricing of derivatives, loans and other financial products. 6. Benchmark Reform: Following the global economic crisis in 2008, the European Banking Authority (EBA) undertook a benchmark reform in order to increase the efficiency and decrease the risk associated with banking benchmarks, such as the Euribor. This resulted in the implementation of the European Benchmark Regulation (BMR) in 2016. The BMR seeks to ensure the integrity of Euribor by subjecting it to high standards and supervision.

The Euro Interbank Offer Rate, commonly known as Euribor, is a benchmark, that is, a reference rate used to determine interest rates for various forms of loans and deposits in the euro zone. It was first introduced in 1998 and is still one of the most influential interest rates worldwide. It is intended to provide a snapshot of the euro money markets, allowing institutions and investors to quickly gain an understanding of the current situation.

The Euribor rate is based on the average interest rate of a select panel of large European banks which are considered to be of the highest credit worthiness. The panel is updated periodically and a new figure is calculated and published each day at 11:00 am CET by Global Rate Set Systems Ltd. on behalf of the European Money Markets Institute (EMMI). The rate is considered to be highly reliable due to its independent calculation and validation process.

Euribor is primarily used to determine interest rates for various forms of lending, such as mortgages and loans, as well as for deposits, treasury bills and bonds. It is also used to calculate the rate of reference for derivatives, loans and other financial products.

In response to the global economic crisis of 2008, the European Banking Authority undertook a benchmark reform which resulted in the implementation of the European Benchmark Regulation in 2016. The BMR seeks to ensure the integrity of Euribor by subjecting it to high standards and supervision. This is intended to increase the efficiency and decrease the risk associated with banking benchmarks.

In summary, the Euro Interbank Offer Rate (Euribor) is an average rate of interest offered by a select panel of major banks in Europe. It is calculated daily by the European Money Markets Institute and is used to determine the interest rates for loans and deposits, treasury bills and bonds, as well as derivatives across the euro zone. It is also subject to the European Benchmark Regulation to ensure its efficiency and reliability.