Urban homelessness is one of the most blatant forms of social exclusion in advanced capitalist societies. In Canada, the United States, and the United Kingdom, homelessness has become particularly entrenched due to systemic forces such as global economic recession, the restructuring of regional economies, the dismantlement of the welfare state, and the erosion of affordable housing that together have pushed more people towards economic marginality and housing insecurity. Despite years of advocacy and 'high profile' government investments, homelessness has persisted as an intransigent social problem. A central purpose of this doctoral thesis is to provide some insight into how homelessness is being 'managed' in one Canadian city. The papers gathered together in this dissertation are based on three years of ethnographic fieldwork (conducted between 2006 and 2009) in a medium-sized, de-industrializing city in the province of Ontario. The specific focus of the thesis is the emergency shelter system. Over the past ten years, a number of new social service models have emerged in response to rising rates of homelessness. As these have been adopted homeless shelter systems in many Canadian cities have undergone significant reconfigurations. This thesis focuses on some of the new 'management spaces' that are emerging in this unfolding policy context. The first paper explores the experiences of voluntary sector organizations and local state authorities. The second paper explores the experiential dimensions of a unique service environment providing emergency shelter and social services. The third paper examines the personal experiences of chronically homeless men as they adapt to life in an innovative 'special care' facility. / Thesis / Doctor of Philosophy (PhD)