Phân tích biến động giá và rủi ro của thị trường chứng khoán ASEAN-6: Bằng chứng thực nghiệm trước và trong thời kỳ covid-19

Ngô Thái Hưng1, Huỳnh Thị Kim Ngân1, Bùi Nguyễn Ngọc Hân2, Đặng Phương Nhung2, Ngô Thảo Nhi2, Trần Thị Cẩm Nhung2
1 Trường Đại học Tài chính- Marketing
2 Trường Đại học Tài chính – Marketing

Nội dung chính của bài viết

Tóm tắt

Mục đích nghiên cứu sự biến động giá và rủi ro của thị trường chứng khoán ASEAN-6 (Indonesia, Malaysia, Philippines, Singapore, Thái Lan và Việt Nam) trước và trong giai đoạn Covid-19. Dữ liệu nghiên cứu từ 2010 đến 2021. Để thực hiện mục tiêu nghiên cứu, mô hình đa biến EGARCH được phát triển bởi Koutmos và Booth (1995) được áp dụng.  Kết quả cho thấy, tác động lan tỏa về giá và rủi ro của sáu thị trường tài chính có khác biệt trước và trong giai đoạn Covid-19. Trước Covid-19, tồn tại mối quan hệ hai chiều về giá trên các thị trường chứng khoán Indonesia, Philippines và Singapore. Hơn nữa, Thái Lan lan tỏa rủi ro đến Indonesia, Philippines, Singapore và Việt Nam trong giai đoạn Covid-19. Kết quả đạt được đáng tin cậy và là kênh thông tin có giá trị cho các nhà đầu tư về đa dạng hóa danh mục đầu tư, cũng như cho các nhà làm chính sách nhằm phát triển ổn định thị trường.

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