We believe that passive products offer the most desirable means to promote of competition where economically sustainable. However, in practice we are likely to need a mix of active and passive inputs initially, allowing scope for technical and economic experimentation. As is the case today with current broadband, both may be required into the future. However, the distinction may not be as simple as a choice between active and passive products. In reality, both active and passive products can take a number of forms, each with subtly different characteristics.