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INTRODUCTION
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Our campaign aims to rally people around the common ground we share in order to solve the problems we face and deliver the change we urgently need.

We aim to show that voters from across the political spectrum share many of the same concerns and desire many of the same solutions to the problems we face as a society. We are, in effect, creating a “People’s Manifesto”.

By demonstrating where the common ground lies in British politics, we hope to unite voters around a common cause and inspire them to think pragmatically about how they can achieve the change they desire.

We also hope to provide a platform around which the opposition parties can cooperate to deliver a bold, transformative agenda.
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METHODOLOGY
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We have researched the Problems that exist in our society, people’s Concerns about those problems, and people’s views on the Solutions to those problems (see tabs).

We then filtered ‘Common Ground policies’ based on those with more than 65% support from progressive voters and more than 50% of overall public support.

These policies therefore have an absolute majority amongst all voters and a super majority amongst progressive voters. More than 200 unique Common Ground policies have been identified in total.

The progressive voter percentages have been calculated by weighting the Labour, Lib Dem and Green vote share from the 2019 general election. We used vote shares of 10.2m (Lab), 3.7m (Lib Dem) and 0.9m (Green) weighted against 11.1m total votes.

Where Lib Dem and/or Green polling data is not available, the progressive voter figures are based purely on polling of Labour voters. Where multiple polling sources exist, we have presented in the Summary Report a source that broadly represents the average of all the polls.

The percentages used for each party are either 'voted for at the 2019 election' or 'voting intention at the next election' depending on the poll source.
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CATEGORISATION
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The data has been arranged into four broad areas - Economy, Environment, Service and Society - each with five policy categories:
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EconomyEnvironmentServicesSociety
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Business & TradeClimate ChangeHealthcareDemocracy
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TaxGreen TransitionEducationEquality & Rights
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WorkPollutionUtilitiesForeign Affairs
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Social SecurityNatural WorldTransportMedia & Culture
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HousingFood & FarmingPolicie & JusticeMigration
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DATA
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These Data Tables contains more than 2000 pieces of data in total.

Our Summary Report then presents 400 pieces of headline data from across the 20 categories and then highlights the Common Ground Policies in each category.

We have drawn data from a wide range of reliable sources. Some sources may be overrepresented due to the accessibility of their data.

The data sources we have used include:
Polling companies: ComRes, ICM, Ipsos MORI, Survation, YouGov, Redfield & Wilton, Opinium etc
Government sites: ONS, OBR, Census, Gov.uk, Commons Library etc
Independent organisations: Open Data Institute, Ofcom, National Data Guardian, Statista, universities etc
Specialist groups/charities: NSPCC, Shelter, Trussel Trust, UNESCO, unions etc

As far as possible, we have aimed for data sources to meet the following criteria:
For problems: impartial and reliable data sources (e.g. ONS)
For concerns: polls with min. 1000 sample size from last 5 years
For solutions: polls with min. 1000 sample size from last 5 years

In some instances, we have used polls conducted by specialist organisations amongst a specialist audience, as these can provide valuable insights that our standard criteria would not provide.

Where multiple polling sources exist, we have presented in the Summary Report a source that broadly represents the average of all the polls.

All the data we have collated is being made available as an open source resource for use by other campaigns and organisations.
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