European Central Bank (ECB), European Central Bank (ECB), European Central Bank (ECB), Bank of Latvia, European Central Bank (ECB), Board of Governors of the Federal Reserve System, European Central Bank (ECB), European Central Bank (ECB), World Bank, OECD, Goethe University Frankfurt, European Central Bank, European Central Bank (ECB), European Central Bank (ECB), European Central Bank (ECB), European Union - European Commission, European Central Bank (ECB), European Central Bank (ECB), European Central Bank (ECB), Bank of Italy, Frontier Economics and Oesterreichische Nationalbank (OeNB)