Kiel Institute for the World Economy

The provided news articles do not mention the Kiel Institute for the World Economy. Therefore, it's impossible to provide a summary of the institute's activities, relevance, or recent developments based on the given information. The articles discuss the US cost of living, the economic impact of a war on Iran on Sri Lanka, and the ongoing war in Ukraine. Without any mention of the Kiel Institute, any attempt to connect it to these events would be speculative and inaccurate.