ESG products are too expensive and their targets are too vague, according to a poll of Swiss pension funds. In addition, investors often had to pay extra fees for specialist expertise for environmental, social and corporate governance (ESG) investing, consultancy group Complementa found.

The company’s latest risk “check up” survey of Swiss Pensionskassen reported that, regardless of whether respondents had exposure to sustainable investments, 60% agreed that the costs of specialised products had put them off investing in the sector. More than half (57%) cited the need for additional expert know-how as a detractor.