АНАЛІТИКА ТА МОДЕЛЮВАННЯ ІНВЕСТИЦІЙНОЇ ДІЯЛЬНОСТІ ПІДПРИЄМСТВ У СФЕРІ КАПІТАЛЬНИХ ВКЛАДЕНЬ

This article explores the investment activity of Ukrainian enterprises, focusing on capital expenditures and their impact on asset value and net income. The study analyzes the dynamics of net cash flow from investment activities during wartime uncertainty. Emphasis is placed on time series models (SARIMA, Holt) and multifactor regression with lag variables to reflect delayed investment effects. Results show that standard models may be unstable under limited data or structural shifts, while lagged regressions offer more realistic insights. The article also examines fixed asset structure, addresses multicollinearity, and applies centering to improve model performance. Overall, the research demonstrates the effectiveness of economic-mathematical tools in investment assessment and provides a foundation for strategy adjustments in unstable economic conditions.