Globalization is transforming theatre everywhere. As writers seek to exploit new opportunities to produce their work internationally, audiences are seeing the world -- and the stage -- differently. And, as national borders became more fluid, the barriers between economics and culture are also becoming weaker. In this groundbreaking study, Patrick Lonergan explores these developments, placing them in the context of the transformation of Ireland -- the 'most globalized country in the world' -- since the early 1990s. Drawing on archival material that has never before been published, this study sheds new light on the culture of Celtic Tiger Ireland, focusing on such writers as Brian Friel, Sean O'Casey, Marie Jones, Martin McDonagh, Marina Carr and Conor McPherson. In doing so, it shows how globalization poses difficult questions for authors and audiences -- and reveals how we can begin to come to terms with these new developments.