"It's shunned publicity, lessening its impact, " says Patrick Hannay, a professor of architecture at University of Wales Institute Cardiff (Uwic).

BBC: The skylines in Welsh cities are changing

Brian Morgan, professor of entrepreneurship at University of Wales Institute, Cardiff (Uwic), said the infrastructure and expertise to stage such an event was already in place.

BBC: Hopes raised for Cardiff Commonwealth Games bid

Professor David Egan of the University of Wales Institute Cardiff (UWIC) said that Wales' poor performance in the OECD's Programme for International Student Assessment (PISA) was cause for concern.

BBC: Children and Young People Committee