Evidence Papers Our evidence papers offer a summary of the latest literature and research questions in each of our four themes: Firms, State, Cities, and Energy and environment. IGC Evidence Papers - Cities Gharad Bryan, Edward Glaeser, Nick Tsivanidis Synthesis paper IGC Evidence Papers - Energy and environment Clare Balboni, Tim Dobermann, Michael Greenstone, Mar Reguant, Nicholas Ryan Synthesis paper IGC Evidence Papers - Firms, trade, and productivity David Atkin, Stefano Caria, Dave Donaldson, Namrata Kala, Imran Rasul, Matthieu Teachout, Eric Verhoogen, Christopher Woodruff Synthesis paper IGC Evidence Papers - State effectiveness Oriana Bandiera, Michael Callen, Katherine E Casey, Eliana La Ferrara, Anders Jensen, Camille Landais, Matthieu Teachout, Shahid Vaziralli Synthesis paper
