The document discusses integrated project delivery (IPD) and how project development risk and cost of capital influence the choice between IPD and traditional delivery models. It notes that while IPD can create value through early design decisions as shown in the MacLearny curve, investing early in development carries high risk that the value may not be realized due to market, entitlement, financing and other risks. This makes the cost of capital steeper in early development stages. Owners with higher development risk tolerance due to their business model or financing approach will prefer IPD, while others facing steeper cost of capital slopes will prefer traditional models. The key is understanding how development risk and value drivers shape the cost of capital over time for any given project