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\documentclass[11pt,nonatbib]{elsarticle}
\usepackage[natbibapa]{apacite}

\begin{document}

    
     A number of studies \citep[e.g.,][]{zhou2008impacts, kouvelis2012financing, seifert2013review, lee2018trade, ning2019commitment} confirm that trade credit induces retailer to over-order.
    
    \begin{enumerate}
        
    \item  \cite{lee1997bullwhip} When I comment this line. The output is different. Ideally as far as I know only last name should be included in citation.
                
        \item \cite{lee2018trade}
        
    \end{enumerate}
    
    \bibliographystyle{apacite}
    \bibliography{MWE}
    
\end{document}

This is the bibliography file content

@article{zhou2008impacts,
    title={Impacts of financial collaboration in a three-party supply chain},
    author={Zhou, J and Groenevelt, H},
    journal={Working Paper},
    year={2008},
    publisher={The Simon School, University of Rochester}
}
@article{kouvelis2012financing,
    title={Financing the newsvendor: supplier vs. bank, and the structure of optimal trade credit contracts},
    author={Kouvelis, Panos and Zhao, Wenhui},
    journal={Operations Research},
    volume={60},
    number={3},
    pages={566--580},
    year={2012},
    publisher={INFORMS}
}

@article{seifert2013review,
    title={A review of trade credit literature: Opportunities for research in operations},
    author={Seifert, Daniel and Seifert, Ralf W and Protopappa-Sieke, Margarita},
    journal={European Journal of Operational Research},
    volume={231},
    number={2},
    pages={245--256},
    year={2013},
    publisher={Elsevier}
}
@article{lee2018trade,
    title={Trade credit financing under competition and its impact on firm performance in supply chains},
    author={Lee, Hsiao-Hui and Zhou, Jianer and Wang, Jingqi},
    journal={Manufacturing \& Service Operations Management},
    volume={20},
    number={1},
    pages={36--52},
    year={2018},
    publisher={INFORMS}
}

@article{lee1997bullwhip,
    title={The bullwhip effect in supply chains},
    author={Lee, Hau L and Padmanabhan, Venkata and Whang, Seungjin},
    journal={Sloan management review},
    volume={38},
    pages={93--102},
    year={1997}
}

@article{ning2019commitment,
    title={Commitment Role of Trade Credit in a Supply Chain With Buyer Competition},
    author={Ning, Jie},
    journal={Available at SSRN 3474543},
    year={2019}
}

The first image is without commenting the first item.

The second image is after commenting the first item. The first image is without commenting the first item.The second image is after commenting the first item.

3
  • 1
    There are two authors with surname “Lee” and the style disambiguates by adding name initials.
    – egreg
    Jul 26 at 14:22
  • By the way, biblatex with style=apa does exactly the same, so I guess it is an APA style requirement.
    – egreg
    Jul 26 at 14:32
  • Ok. Thanks. The problem is resolved.
    – mathslove
    Jul 26 at 15:56
2

See the relevant page on the APA website

enter image description here

In your case, if you omit \cite{lee1997bullwhip} only one first author with surname “Lee” is cited and so no initials are added. With that citation, to the contrary, the rule about adding initials is enforced.

I checked and the same happens with biblatex-apa.

1
  • Yes @egreg...you are right. This is the requirement to distinguish the authors having the same last name. Thanks for sharing the details.
    – mathslove
    Jul 26 at 16:25

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