资源环境科技发展态势分析平台

This is done in relation to the benchmark of World Economic Outlook (WEO) projections by the International Monetary Fund. Amid much heterogeneity across countries and years, it has been found that ADO and WEO projections overlap quite closely. Both are inaccurate, especially during crisis years, suggesting that forecasters struggle to come up with reliable forecasts. Projections only sharpen when additional data and evidence become available over time and are incorporated during quarterly revisions.