Using Gretl, I apply ARMA, Vector ARMA, VAR, state-space model with a Kalman filter, transfer-function and intervention models, unit root tests, cointegration test, volatility models (ARCH, GARCH, ARCH-M, GARCH-M, Taylor-Schwert GARCH, GJR, TARCH, NARCH, APARCH, EGARCH) to analyze quarterly time...

The overall composite Business Survey Index for the manufacturing sector in Q1 2021 remained under the baseline (100). Moreover, all feeder indices have slightly decreased compared to the previous quarter. Business conditions (92), sales (91), domestic demand (90), ordinary profit (88), and...

The overall composite Business Survey Index for the manufacturing sector in Q4 2020 remained under the baseline (100). However, all feeder indices have slightly increased compared to the previous quarter. Specifically, sales (96), domestic demand (96), and ordinary profit (92) showed...

The overall composite Business Survey Index for the manufacturing sector in Q2 2022 remained under the baseline (100). However, most feeder indices have increased compared to the previous quarter. Specifically, business conditions (90), sales (95), domestic demand (94), exports (96), and others...

The BSIs for the 3rd quarter of 2014 suggest that the weakness in manufacturers’ business conditions has continued. The BSIs of sales and domestic demand have worsened since last year. Furthermore, the BSIs on facilities investment, operation ratio of facilities, employment, and financial...

The BSIs for the 3rd quarter of 2015 suggest that manufacturers’ economic sentiment is far from bright. A majority of BSIs are in a recession, showing below the baseline (100). However, the BSIs on inventory have improved since the 1st quarter 2015

The BSIs for the 2nd quarter of 2015 indicate that manufacturing firms have continued to report weakness in their economic sentiment. Specifically, sales (92), domestic demand (93), exports (94), ordinary profit (90), operation ratio of facilities (98), and financial condition (87) are in a...

Outline of KIET Quarterly Manufacturing Business Survey Index BSI surveys were conducted in 379 domestic manufacturing firms. Respondents answered online-based questionnaires that include 7 scale choices from March 4, 2015 to March 20, 2015. The questionnaire is composed of 10 items including...

The BSIs for the 4th quarter of 2014 suggest that the trend of weakness in manufacturers’ business circumstances has continued. The weak performances regarding the demand (e.g. sales, domestic demand, etc.) and production sides (e.g. facilities investment, employment, etc.) have persisted for...

The overall composite Business Survey Index for the manufacturing sector in the 3rd quarter2016 suggests that manufacturing sector has relatively decreased compared to the previousquarter. Business condition and sales in the manufacturing sector have slightly declined,standing at BSIs of 84...