Refer to the quarterly value of Gross Domestic Product (GDP in billions of currentdollars) in China from 2021q1 to 2023q4. You are going to analyze GDP by an additivemodel with a trend component (Tt) and a seasonal component (St), and forecast GDPusing the seasonal decomposition method.YearQuartertGDP (Y₁)CM(4)Detrended202111249202228284.93329128.8??4432589.9??20221527034.4??2629244.7??3730794.2??4833399.1??20231928442.3??21030829.3??31131997.641234789a. Use an CM(t|4) [centered moving average of order 4] series to estimate the GDPseries from t = 3 to 10.b. Calculate the seasonal factors for each quarter with a zero mean, by first obtainingthe detrended revenue series from t = 3 to 10.c. In this seasonal decomposition method, why is it necessary to use moving averagesto process time series data first? How about using moving average of order 5?

The objective of the question is to analyze the GDP of China using an additive model with a trend…

Answered: Refer to the quarterly value of Gross…

Survey Of Economics

10th Edition

ISBN:9781337111522

Author:Tucker, Irvin B.

Publisher:Tucker, Irvin B.

Chapter11: Gross Domestic Product

Section: Chapter Questions

Problem 4SQ

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