Operators use different approaches to keep the cost down.
For example, some operators have opted to use a model known as the Operating Leverage Formula (OLF), which means they charge a fixed fee for the use of the stage.
This means that the opera house is effectively operating for the benefit of the audience, as the audience is the main cost-receiving end.
Operators then have the freedom to charge the most that they can.
The OLF has been criticised by critics for its “unfair and inequitable” nature.
The opera house has said that it does not use OLF, but has said it will investigate the matter.
Operating leverage means that a stage is used only when the audience has arrived and is ready to see the opera.
The first stage was installed in the early 1960s and is now in use at the Royal Opera house, which is the world’s largest opera house, and is one of the world and most visited opera houses.
Read more: The Royal Opera is not using OLF The OLA has been controversial.
Critics have argued that the OLF is unfair and inequitably charged.
In a statement, the Royal Operators’ Association (ROA) said: “Royal Opera House is using a model of Operating Levers that has been described as unfair and unequal.
We are therefore looking into this issue.”
The ROA also called on the Royal Commission to investigate the OLA.