Introduction

Globalization often implies the increased flow of persons, goods and information across country borders. Consequently, labour migration between Southeast Asia and the rest of Asia is part of this trend. This is a unique phenomenon unlike migrant flows between the emerging economies of Asia and developed Western countries. This chapter, therefore, examines the reasons and policy issues surrounding the movement of unskilled migrant workers from Thailand and Vietnam to South Korea. The two countries are of great interest in this regard as they are two of the fastest ageing societies in Southeast Asia, with Vietnam having the youngest population in the region. But demographic numbers on fertility and mortality do not tell the full story, as it is important to examine the role of policies adopted by each country with South Korea's Employment Permit System (EPS), in influencing such flows. The reasons and patterns for such migration are based on empirical data drawn from field observations and interviews.

Methodology

The purpose of this study is to uncover the reasons surrounding the outgoing movement of unskilled migrant workers from Thailand and Vietnam to South Korea, and its impact on population change at the source of migrants. Therefore, the relationship of South Korea's EPS to such migration flows will be examined. This study entailed qualitative research consisting of key informant interviews and archival research. The key informant interviews were conducted in Seoul, Bangkok and Daegu. A Korean labour union, women's NGO, Thai labour migrant NGO as well as one Thai and one Vietnamese migrant worker were interviewed in 2018 and 2019. These interviews enabled the author to examine the situation of documented and undocumented workers in South Korea and the roles that migration intermediaries play in the process. All the interviews were conducted anonymously. For the archival research, censuses and labour migration reports of South Korea, Vietnam and Thailand were reviewed.

Reasons for Labour Migration

Existing migration theories seldom address the transnational movement of labour in connection to demographic factors. At a glance, developing countries with young populations tend to export their excess labour force. Classical push-pull discourse claims that labour surplus in the sending country and labour deficit at the destination trigger the flow in both ways (Lee 1966; Castles and Miller 2009).