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Search Symbol (Half-width) Description of Search Symbols
Space "AND" indicates the intertwining of key terms used in a search
Double Quotation Marks ("") ( " " ) Double quotation marks indicate the beginning and end of a phrase, and the search will only include terms that appear in the same order of those within the quotations. Example: "image process" : " image process "
? Indicates a variable letter. Entering two ? will indicate two variable letters, and so on. Example: "Appl?", search results will yield apple, apply… e , appl y … ( (often used to English word searches) )
* Indicates an unlimited number of variable letters to follow, from 1~n. Example: Enter "appl*", search results will yield apple, apples, apply, applied, application…(often used in English word searches) e , appl es , appl y , appl ied , appl ication … ( (often used to English word searches) )

Boolean logic combinations of key words is a skill used to expand or refine search parameters.
(1) AND (1) AND: Refines search parameters
(2) OR (2) OR: Expands search parameters (3) NOT: Excludes irrelevant parameters


DOI stands for Digital Object Identifier ( D igital O bject I dentifier ) ,
and is the unique identifier for objects on the internet. It can be used to create persistent link and to cite articles.

Using DOI as a persistent link

To create a persistent link, add「」 「 」 before a DOI.
For instance, if the DOI of an article is 10.5297/ser.1201.002 , you can link persistently to the article by entering the following link in your browser: 10.5297/ser.1201.002
The DOI link will always direct you to the most updated article page no matter how the publisher changes the document's position, avoiding errors when engaging in important research.

Cite a document with DOI

When citing references, you should also cite the DOI if the article has one. If your citation guideline does not include DOIs, you may cite the DOI link.

DOIs allow accurate citations, improve academic contents connections, and allow users to gain better experience across different platforms. Currently, there are more than 70 million DOIs registered for academic contents. If you want to understand more about DOI, please visit airiti DOI ) 。

Abstract 〈TOP〉
    Reference ( 15 ) 〈TOP〉
    1. 王楚元(2012),「以製造業採購經理人指數為門檻探討總體變數對股價指數之關聯性分析-縱橫平滑移轉模型之應用」,淡江大學財務金融學系碩士論文。
    2. Afshar, T. (2007) , “Stock Return, Consumer Confidence, Purchasing Manager’s Index And Economic
    3. Enders, W. (2004), Applied Econometric Time Series, Wiley Press
    4. Granger, C.W.J (1969), “Investigating Causal Relations by Econometric Models and
    5. Cross-Spectral Methods, ”Econometrica, vol.37,424-438.
    Times Cited (3) 〈TOP〉
    1. 林彥豪(2016)。油價、ISM製造業指數、消費者信心指數、股價及實質生產之研究。臺灣大學經濟學研究所學位論文。2016。1-62。 
    2. 陳建和(2015)。製造業採購經理人指數PMI與股價指數之關聯性研究-以中國為例。逢甲大學金融碩士在職專班學位論文。2015。1-40。 
    3. 魏志諺(2014)。電子暨光學產業之採購經理人指數與月營收的關聯性:以台灣半導體產業為例。中央大學財務金融學系碩士在職專班學位論文。2014。1-81。
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