Stuart McIntyre, Gary Koop and Aubrey Poon (FAI, Economics) with their co-author James Mitchell (Warwick) produced new model based nowcasts of gross value added (GVA) for the UK regions which were publicly released on November 20.
This data can be accessed here. The new data are produced to a similar timetable as the ONS produce their quarterly growth estimates for the UK. They therefore represent a significant improvement in the timeliness, frequency and historical coverage of data on regional economic growth. These regional growth estimates are consistent with the annual data for the regions and the quarterly data for the UK published by the ONS.
These data were produced as part of the Office for National Statistics 'Economic Statistics Centre of Excellence'. More details of the project and these data can be found at the above link. Some news articles on these data include: