Hàm Cobb-Douglas hay hàm Translog? Nghiên cứu thực nghiệm tại Việt Nam

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Tác giả: Quang Cảnh Trần, Trực Phức Vũ

Ngôn ngữ: Vie

Ký hiệu phân loại:

Thông tin xuất bản: Khoa học - Đại học Mở TP Hồ Chí Minh 2022

Mô tả vật lý: 142-149

Bộ sưu tập: Metadata

ID: 405586

Thêm vào giỏ Liên kết toàn văn

Trong kinh tế học và kinh tế lượng, hàm sản xuất Cobb-Douglas và hàm Translog thường được sử dụng rộng rãi để biểu thị mối quan hệ kỹ thuật giữa lượng của hai hoặc nhiều yếu tố đầu vào và lượng đầu ra. Tuy nhiên, theo khảo lược từ các nghiên cứu trước thì đa phần đều sử dụng hàm Cobb-Douglas, cũng có một số nghiên cứu sử dụng hàm Translog hoặc cả hai hàm trong một nghiên cứu. Tuy nhiên, việc so sánh kết quả phân tích của hai dạng hàm này hầu như chưa được đề cập đến. ,, Bài viết sử dụng số liệu thống kê đầu vào là GDP Việt Nam từ 2009 - 2019, thực hiện phân tích bằng cả hai hàm Cobb-Douglas và Translog. Kết quả nghiên cứu cho thấy từ việc so sánh độ lệch chuẩn, so sánh đồ thị giá trị dự báo với đồ thị của giá trị thực tế và các chỉ số Mean Absolute Error (MAE), Mean Abs. Percent Error (MASE), Root Mean Squared Error (RMSE), Theil Inequality Coefficient (Theil) đều thể hiện kết quả dự báo bằng hàm Translog cho kết quả đáng tin cậy hơn so với dự báo bằng hàm Cobb-Douglass., Tóm tắt tiếng anh, In economics and econometrics, the Cobb-Douglas production function and the Translog function are used to represent the technical relationship between the quantities of two or more inputs and the quantities of outputs. Yet, according to the review of previous studies, most of them use the Cobb-Douglas function
there are also some studies that use the Translog function or both functions in one study. But, the comparison of analytical results of these two types of functions has hardly been mentioned. This paper uses input statistics on Vietnam's GDP from 2009 to 2019, performing analysis using both Cobb-Douglas and Translog functions. The study results showed that from the comparison of the standard deviation, the comparison between the graph of predicted values with the graph of real value and Mean Absolute Error (MAE), Mean Abs. Percent error (MASE), Root Mean Squared Error (RMSE), Theil inequality coefficient (Theil) all show the forecast results using the Translog function for more reliable results than the forecast using the Cobb-Douglass function.

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