In this connection, such inflation risks should be heeded as may arise, owing to real convergence in the economic catching-up and adjustment process, from existing divergences in price and cost patterns. That means that the movements of unit labour costs and other price indices must be included in the assessment.
Special attention must also be paid to the relative prices of non-tradables, for they include evidence of the degree of real convergence and of future inflation risks. The EC Treaty explicitly emphasises that an accession country has to have achieved a sustainable high degree of price stability.