Annual study suggests target allocations will grow, but near-term activity could slow. : Close to half of institutional investors surveyed by IPE Real Assets believe infrastructure assets are too expensive, but the report also shows persistently high allocations to the asset class. This year’s survey, launched today at the IPE Real Assets & Infrastructure Conference in London, shows that 48% of investors think infrastructure is too expensive. But 68% of investors allocate to the asset class, while 59% may invest in the future and 27% have definite plans to do so.