Disinflation is a slowing in the rate of price inflation. It is used to describe instances when the inflation rate has reduced marginally over the short term. Although it is used to describe periods of slowing inflation, disinflation should not be confused with deflation, which can be harmful to the economy.

When the overall price level decreases so that inflation rate becomes negative, it is called deflation. It is the opposite of the often-encountered inflation.

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The Stockholm Convention on Persistent Organic Pollutants (POPs) is a global treaty to protect human health and the environment from highly dangerous, long-lasting chemicals by restricting and ultimately eliminating their production, use, trade, release and storage.

The UN Educational, Scientific, and Cultural Organization (Unesco) has named the Brazilian city of Rio de Janeiro as the World Capital of Architecture for 2020.

Having defeated Paris and Melbourne, Rio will be the first city to receive the title under a programme launched together by Unesco and the International Union of Architects (UIA) in November 2018

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Under the World Trade Organisation (WTO) agreements, countries cannot normally discriminate between their trading partners. If any country grants one country a special favour such as a lower customs duty rate for one of their products the same would need to be extended to all other WTO members. This principle is known as most-favoured nation (MFN) treatment.

MFN is so important a principle that it is the first article of the General Agreement on Tariffs and Trade (GATT), which governs trade in goods. MFN is also a priority in the General Agreement on Trade in Services (GATS) and the Agreement on Trade-Related Aspects of Intellectual Property Rights (TRIPS). Together, those three agreements cover all three main areas of trade handled by the WTO.