Hypothesis
Publishing an integrated report voluntarily should improve a firm’s information environment, sharpening analyst earnings forecasts and raising firm value.
What failed
Across an international sample of 167 listed companies that publish an integrated report voluntarily, there was no significant effect of that publication either on analyst earnings forecast accuracy or on firm value.
Broken assumption
An integrated report gives investors information they did not already have.
Why
The authors suggest voluntary adopters are already unusually transparent, so the report adds nothing incremental, and expect the benefits to appear where integrated reporting is mandatory.
From the published paper: Wahl et al. Business Strategy and the Environment, 2020. ↗CC BY