A research institute, research centre, or organisation that performs research and advocacy on various social, economic, or poltical topics. Many are non-profit organisations could be funded by governments, advocacy groups, corporations, private donations and may also derive revenue from consulting or research work. They may also be known as policy institute or think factory
The Economist: mostly known for the magazine but these links lead to much more. Ignore "discontinued products" message on landing page and scroll down.
Some other financial news sources