The conventional paradigm about development banks is that these institutions exist to target well-identified market failures. However, market failures are not directly observable and can only be ascertained with a suitable learning process. Hence, the question is how do the policymakers know...

In the wake of the Russian aggression against Ukraine, major sanctions have been imposed by Western countries, most notably with the aim of limiting Russia's access to hard international currency. However, Russia remains the world's first exporter of oil and gas, and at current energy prices...