Shares in Europe slipped on Monday morning in the first moments of trading since 129 people were killed in a series of attacks on Paris on Friday night.
The Cac 40 stock index in Paris fell around 40 points before recovering, as did the Frankfurt Dax market. In London, the FTSE 100 made slight gains.
But some of Europe's airlines and travel and tourism companies were the worst affected by Friday's massacre. Air France saw its shares fall 5%, while British Airways owner IAG fell 3.4%. French hotelier Accor dropped by more than 6%.
Eurotunnel group and Aeroports de Paris, which operates Charles de Gaulle and Orly airports, both saw its shares fall by 5%. Budget airlines easyjet and Ryanair fell 3%.
Many economic analysts had forecast that travel and tourism businesses would be those most affected by Friday's events. But it is expected to be short-lived.
"As horrific as these events are - and this is truly awful - economic activity does tend to be pretty resilient. At the end of the day, people have to get on with their lives," said Howard Archer, economist at IHS Global Insight.