However, there remain two causes for concern: -  one is the natural difficulty in moving to an entirely new set of price references – and it may take a number of years before this switch is fully made by the public at large. -  and the second, probably related to the first one, is the feeling in the public that there have been excessive price increases linked to the cash changeover. Indeed, the public’s attention has focused on a small number of goods and services in which abnormal increases occurred at the time of this event, leading to a misperception of the real rate of inflation. This gap between perceived inflation and real inflation has however been narrowing progressively and should hopefully disappear in the near future. Concluding remarks To conclude, let me emphasise that eight years after its adoption, the euro has lived up to all of our expectations. After the unprecedented challenge of a continent-wide cash changeover, the euro almost instantly replaced the legacy currencies without any disruptions. It has fostered both price and macroeconomic stability through its credibility and has shielded many euro area countries from significant exchange rate volatility and financial market  1  On average, central banks of industrialised countries changed their policy rates every 5 months both in the 1980s and the 1990s (Source Clerc et Yates (1999): “Interest rate stepping: some puzzles and facts”, mimeo Bank of England), which is close to the frequency of the ECB interest rate changes (4.7 months).
The deepest red, for example, means the indicator is beyond the 90th percentile of its historic distribution. Chart 4 Selected indicators of underlying vulnerabilities  Series and sources: 12-month mortgage credit growth (Bank of England); share of households with mortgage LTIs above 4.5 (UK Finance); corporate debt growth (annual) – Bank staff measure (Bank of England, Association of British Insurers, Cass Commercial Real Estate Lending Survey, Datastream from Refinitiv, Deals Business Intelligence from Refinitiv, Deloitte, LCD, an offering of S&P Global Market Intelligence, London Stock Exchange, ONS, Preqin and Bank calculations); UK current account balance (% GDP) (ONS and Bank calculations). Notes: Each data series included in the heatmap has been rescaled into a percentile by using a kernel density estimate of its cumulative distribution function using all available data back to 1987. The Bank staff estimate for corporate debt adjusts the official ONS measure by adding sources of market-based finance not captured by the ONS and by removing other sources of market-based finance that have been misallocated to corporate debt. The net effect of these adjustments is predominantly to decrease the level of debt pre-crisis. Stocks of PNFC debt at 2018 Q3 split: 43% bank loans, 39% corporate bonds, with residual being money market instruments and other forms of non-bank finance. The temperature overall doesn’t look elevated. The only warm colour on this heat map stems from the UK’s continued reliance on the kindness of strangers – its persistent current account deficit, running currently at 4.4% of annual GDP (Chart 3).