Truyền dẫn giá trong chuỗi cung ứng xuất khẩu tôm thẻ chân trắng tại Việt Nam

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Tác giả: Hảo Trương Ngọc, Trứ Lê Công, Trúc Trần Thanh

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Tạp chí Khoa học Đại học Mở Thành phố Hồ Chí Minh - Kinh tế và Quản trị kinh doanh, 2024

Mô tả vật lý: tr.62-74

Bộ sưu tập: Báo, Tạp chí

ID: 380363

Thêm vào giỏ Liên kết toàn văn

In the trade integration process of an agricultural sector, price transmission in export supply chains is an essential issue that needs attention. This paper analyses price transmission from export prices to farm-gate prices of white-leg shrimp production in Vietnam. Monthly series data on both farm-gate prices and export prices were collected from January 2015 to October 2020. The cointegration test indicated that in the long run, the farm-gate prices integrated with the export prices. The causality test also revealed that farm-gate prices were led by export prices. The Engle-Granger’s two-stage estimation results showed an incomplete price transmission from export prices to farm-gate prices with rather a high level of transmission in the long run, and a relatively slow rate of price transmission in the short run. In addition, the asymmetric error correction model using the Houck and Ward approach demonstrated that the price transmission was symmetric in the short run as well as the long run. The findings of this study are useful for farmers in developing production and business strategies. Symmetric price transmission is a positive signal for farmers to invest in sustainable production approaches and to meet the stringent standard requirements of the export market.Trong tiến trình hội nhập thương mại của một ngành hàng nông nghiệp, nghiên cứu sự truyền dẫn giá trong chuỗi cung ứng xuất khẩu là rất quan trọng. Nghiên cứu này phân tích sự truyền dẫn giá từ giá tôm xuất khẩu đến giá tôm tại ao của mặt hàng tôm thẻ chân trắng tại Việt Nam trong giai đoạn từ tháng 01/2015 đến tháng 10/2020. Kiểm định đồng liên kết cho biết giá tôm tại ao và giá tôm xuất khẩu có mối quan hệ dài hạn
đồng thời, giá tôm xuất khẩu dẫn dắt giá tôm tại ao thông qua kiểm định nhân quả. Kết quả ước lượng theo quy trình hai giai đoạn của Engle-Granger cho biết truyền dẫn giá từ giá tôm xuất khẩu đến giá tôm tại ao là không hoàn toàn trong dài hạn nhưng mức độ truyền dẫn giá là khá lớn
và tốc độ truyền dẫn giá ở ngắn hạn là tương đối chậm. Bên cạnh đó, mô hình hiệu chỉnh sai số bất đối xứng dựa trên phương pháp của Houck và Ward cho biết sự truyền dẫn giá này là đối xứng trong ngắn hạn cũng như dài hạn. Khám phá của nghiên cứu góp phần giúp người nuôi tôm thẻ chân trắng lập kế hoạch sản xuất kinh doanh hiệu quả. Đồng thời, truyền dẫn giá đối xứng là một tín hiệu tích cực để người nuôi tôm thẻ chân trắng đầu tư các phương thức sản xuất bền vững, đáp ứng những tiêu chuẩn sản phẩm ngày càng khắt khe từ thị trường xuất khẩu.

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