The most basic question then is how are international agreements defined.

Writtent Blog

There are a number of Rent Review methods, for example increases determined by a fixed percentage, market based or tied to changes in the Consumer Price Index (CPI). It is common for CPI or fixed reviews to occur during the term of a lease and for a market review to occur at the expiry of the initial term where an option for a further term has been exercised.

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