The paper examines the influence of internal factors and external factors on liquidity of Vietnamese listed enterprises. The study uses robust regression techniques in the fixed effects linear panel data using data collected from companies listing on the stock market in Vietnam during 2008-2019, with a total of 6,700 observations. Liquidity of Vietnamese listed enterprises is measured by current assets to current liabilities, whereas firm size, capital adequacy, profitability, leverage are used as internal determinants. Further, economic activity, inflation rate, exchange rate, and interest rate are the external factors which are considered. The research results indicate that capital adequacy, return on equity, leverage, economic activity have a positive effect on firm’s liquidity, whereas return on assets and exchange rate have a negative effect on firm’s liquidity and firm size, inflation rate and lending rate have no correlation with firm’s liquidity. Based on the research results, the author suggests that the firms should have optimum current ratio by balancing the current assets and current liabilities in order to avoid a situation of high liquidity or low liquidity. This research seeks to bridge a gap which is present in the body of literature on listed enterprise’s liquidity in Vietnam. The findings may be useful for financial managers, investors, and financial management consultants.

Abstract
1. Introduction
2. Literature Review and Hypotheses
3. Model and Research Method
    3.1. Research model
    3.2. Research Data
    3.3. Data Processing Methods
4. Research Results and Discussions
    4.1. Descriptive Statistics
    4.2. Correlation Analysis
    4.3. Empirical Results
5. Conclusion and Recommendations
References

• Hang Thu DANG(Faculty of Transport Economics, University of Transport Technology, Vietnam) Corresponding Author