Abstract:
This study explores the key factors influencing the investment behaviour of 
Generation Y (Millennials) in Sri Lanka, focusing on employed individuals aged 27 
to 43. As Millennials enter their peak earning years, understanding their financial 
decision-making is vital for developing effective financial products and education 
programs. Using purposive sampling, data were collected from 1,000 employed 
respondents through a structured online questionnaire. The study examined four main 
factors: financial literacy, investment goals, media and information sources, and risk 
tolerance. Despite the non-probability sampling, the large sample size permitted the 
use of parametric techniques such as Pearson correlation and multiple regression. 
Assumptions of normality, linearity, and multicollinearity were tested and met. 
Findings revealed that financial literacy and media sources had strong positive 
impacts on investment decisions. Risk tolerance had a modest but significant effect, 
while investment goals unexpectedly showed a negative relationship, indicating a 
possible gap between goals and actual planning. These results emphasize the 
importance of targeted financial education and the influence of digital media. While 
the findings are not generalizable due to sampling limitations, they offer valuable 
insights into the investment behavior of working Millennials in Sri Lanka and suggest 
directions for broader future research.