B Corp Ratings: Another Perfect Use Case for XBRL

The news that B Corp is revving up its sustainability rating system provides another perfect use case for a new XBRL taxonomy to help with sustainability reporting. As GreenBiz reports:

“This is B Lab’s effort to launch a rating system that focuses not on the financial performance of companies and funds, but instead, their social and environmental impact,” Houlahan said, “creating a global, comparable system that allows investors and institutions to unlock a huge amount of capital to flow into impact investing.”

To participate in B Corp ‘s Global Impact Investing Rating (GIIR) system you visit their website, create a profile and plug in a bunch of evidential data. You are then interviewed by B Corp and selected particpants are subject to a more detailed audit. The result is a comprehensive B Corp GIIR rating report.

Now imagine that this web input form was translated into an XBRL taxonomy. Then any sustainability reporting application could simply generate an XBRL file to supply the data (already collected in the reporting system) to B Corp via a web service. Using XBRL would help to reduce what could be hours of manual input work into a press of a button.

In this scenario, because the underlying data has been ‘standardized’ via an XBRL taxonomy it can then be provided as an RSS feed for analysis by any application capable of consuming the feed. This gets right to the heart of XBRL’s real value proposition: the effective and efficient communication of information – in this case sustainability impact information rather than purely financial information.


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  • Daniel Roberts

    Stewart,

    You're definitely on the right track here – XBRL for sustainability reporting would be a massive step forward. c Maybe such an initiative from the B Corp would spur development of such a taxonomy – although my guess is it would come from the IIRC and not the GRI.

    Then there is the KPIs for ESG developed by the DVFA and endorsed by EFFAS. This is a ready-made 'taxonomy' of ESG related KPIs for something like 20 industry groups. Ralf Frank and his team should be commended for this development. More importantly, instead of each pretending they are the one-true standard, the various CSR/ESG/Sustainability standards should be working together to develop a common standard.

    Protection of turf and self interest rules even in the “greater good” space.

    • Stewart Mckie

      Dan – Thanks for commenting. As you say, it's good to remember that DVFA in Germany and DEFRA in the UK have both made significant contributions already to the 'indicator universe' for sustainability. I've also blogged before on Spanish efforts in this area.

      Another useful direction is the provision of sustainability-related web services – for example to calculate carbon emissions. I've just integrated one into my sustainability reporting software to handle business travel updates directly from mobile phones.

      IMHO the GRI has dragged its heels on XBRL adoption so maybe a US-led initiative could get there faster?