has also been explored. A growing "shared housing" movement serves as a broker between the space needs of some and the income or service needs of others, many of whom are older homeowners. Several CDCs are experimenting with cross-subsidy development projects where the profit from market-rate units is used to write down the cost of units for low-income residents. There has also been a growth in European-style limited-equity cooperatives or mutual housing associations, which hold the developments in trust for low-income families in perpetuity. Few of these models are new, but they are being reexamined in the light of changing real estate markets, shrinking subsidies, and fiscal constraints. Demonstrations of these models may lead to new state and federal policies for low-income housing.