How might implementing a universal basic income affect traditional labor markets in developing countries?

The concept of a universal basic income (UBI) has gained traction in many parts of the world as a potential solution to issues such as poverty, economic inequality, and technological unemployment. However, its impact on traditional labor markets, especially in developing countries, remains a subject of debate. While UBI could provide a financial safety net, enabling individuals to seek better employment opportunities without immediate economic pressure, it might also disrupt existing local labor economies and wage structures. In environments where informal work constitutes a significant portion of economic activity, how would UBI reshape the dynamics between employers and job seekers, and what could be the long-term ramifications on workforce productivity and economic growth in these regions?