The study focuses on a very niche sector (water supply) in a single country (Ukraine) during a specific timeframe (pre-2020 reforms). This context significantly limits the generalizability of findings to other public sectors, countries, or time periods.
Self-reported Data Biases
Reliance on self-reported surveys can introduce biases like social desirability bias and common method variance, where respondents may overestimate their innovativeness or other positive traits.
Lack of Control Variables
The study doesn't control for other relevant factors that could influence innovation, such as organizational culture, leadership styles (beyond entrepreneurial leadership), or external pressures like regulatory changes.
Causality not Established
The study infers causality from correlational data. While the analysis shows associations between entrepreneurial behaviors and innovation, it doesn't definitively prove that these behaviors *cause* innovation.
Exclusion of Non-significant Variables
The study excludes one of its hypothesized relationships (intrapreneurial self-efficacy) from the main analysis because it was not statistically significant. This exclusion should be thoroughly justified and discussed, including an analysis of potential reasons for non-significance and what it means for the overall theoretical model.