A UNPA might begin as an inter-parliamentary institution–an assembly of parliamentarians from their respective countries' legislatures–and then change to a directly elected body. This would be similar to the evolution of the European Parliament. Beginning with the European Common Assembly's founding in 1952, MEPs were appointed by each of the Member States' national parliaments; in 1979, direct election was instituted. Sen. Douglas Roche, O.C., in "The Case for a United Nations Parliamentary Assembly", analyzes the tradeoffs between the two choices. A UNPA based on existing parliamentarians may be easier to establish, because it avoids several hurdles, such as decisions on electoral cycles, a universally acceptable electoral body, legitimacy of elections, and so on: "A body comprising national parliamentarians has the 'stamp of approval' built-in. National parliamentarians can claim electoral legitimacy in their own right. Admittedly, the credibility of domestic franchised can be called into question, but the trend toward democracy has been strengthening rapidly."