Gross Domestic Product MoM

Gross Domestic Product MoM is the month on month change in United Kingdom monthly real GDP. Real means volume after removing price change through deflation. The Office for National Statistics (ONS), the United Kingdom national statistics body, builds it from output data only.

It tracks gross value added (GVA), output value minus input costs, at basic prices, which exclude taxes less subsidies on products. That GVA proxy stands in for GDP at market prices, where GVA plus taxes on products minus subsidies equals GDP. It covers the whole United Kingdom with a long monthly back series.

A positive reading means expansion and a negative reading means contraction, while 0.0% means no growth. Only the output approach exists each month, with no expenditure or income split. There is no target band, so reading is by sign only, and a single month is volatile and needs care alongside the 3 month trend.

The Office for National Statistics (ONS) publishes the estimate each month, around 40 days after the measured month ends. Each release stays open for revision for the published month plus the prior 2 months under the published revisions policy. In the quarter month that coincides with the first quarterly GDP estimate, both appear on the same day with fully coherent output data.

The annual Blue Book method update can revise earlier periods to align monthly output with higher quality annual benchmarks. It arrives with services, production, construction and trade bulletins, plus the rolling 3 month estimate, contributions tables, time series and revisions triangles.

The publisher leads with the 3 month on 3 month movement because monthly change is volatile. Use the single month with caution alongside the 3 month rate when judging the trend.

Four industry groups drive the headline with fixed GVA weights that sum to a total of 1000 per mille. Services carry the largest weight, so services performance normally decides the sign of the headline, while smaller parts add swings.

• Services, weight 798.1 per mille: captures professional, health, retail, real estate, education and hospitality output.

• Production, weight 135.3 per mille: captures mining, manufacturing, energy and water output, with manufacturing the largest part.

• Construction, weight 59.4 per mille: captures new work plus repair and maintenance, and it moves with projects and weather.

• Agriculture, forestry and fishing, weight 7.1 per mille: captures farm, forestry and fishing output as a small residual.

A consumer facing subset such as retail, hospitality, travel and recreation can move against the headline in a given month. That split teaches why a single month can differ from the 3 month trend, with no fixed threshold beyond sign.

Estimation follows output, deflation, seasonal adjustment, chain linking, aggregation and growth calculation using survey and administrative inputs.

• Collect output at selling prices: survey around 30000 businesses plus construction returns, VAT turnover and models where data are missing, anchored to annual benchmarks.

• Deflate to volume: deflate output and inputs separately with price indices including CPI, PPI and SPPI parts. Volume GVA equals deflated output minus deflated inputs.

• Seasonally adjust: adjust each industry for calendar effects, then sum the adjusted series into sectors and total output with checks for leftover seasonality.

• Chain link and index: combine industries with weights updated each year into an index with a periodically rebased reference year that leaves economics unchanged.

• Aggregate to headline: weight industry GVA by share and sum to headline output. GVA plus taxes on products minus subsidies equals GDP at market prices.

• Grow and contribute: divide the month index by the prior month index, subtract one and multiply by 100. Sector points equal weight divided by 1000 times sector growth, so services growth of 0.2% with weight 798.1 adds about 0.16 points.

The monthly figure is GVA at basic prices used as a proxy, not exact GDP at market prices. It covers output only with no income or expenditure split, so treat a single month with caution and check the 3 month rate.