The Economic Sentiment Indicator (ESI) is a DG ECFIN composite of business and household sentiment across the EU. It blends 5 confidence indicators: industry, services, consumers, retail trade and construction. Each confidence indicator averages survey balances, which are positive minus negative answer shares. The panel covers about 134000 firms and 32000 consumers, with national institutes doing fieldwork and DG ECFIN aggregating results. The headline combines 15 standardised components rather than the 5 published averages. Its purpose is to track GDP growth, not to measure output itself. The scale centres on 100, so above 100 means above-average sentiment. Financial services confidence stays outside the index and appears separately. Employment expectations also stay outside and form a separate jobs gauge.