<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.4 20241031//EN"
        "https://jats.nlm.nih.gov/publishing/1.4/JATS-journalpublishing1-4.dtd">
<article  article-type="research-article"        dtd-version="1.4">
            <front>

                <journal-meta>
                                                                <journal-id>rjbm</journal-id>
            <journal-title-group>
                                                                                    <journal-title>Research Journal of Business and Management</journal-title>
            </journal-title-group>
                                        <issn pub-type="epub">2148-6689</issn>
                                                                                            <publisher>
                    <publisher-name>Suat TEKER</publisher-name>
                </publisher>
                    </journal-meta>
                <article-meta>
                                        <article-id pub-id-type="doi">10.17261/Pressacademia.2017.465</article-id>
                                                                                                                                                                                            <title-group>
                                                                                                                        <article-title>THE IMPACT OF INCREASING TEAM SIZE ON PROJECT PRODUCTIVITY</article-title>
                                                                                                                                        </title-group>
            
                                                    <contrib-group content-type="authors">
                                                                        <contrib contrib-type="author">
                                                                <name>
                                    <surname>Lai</surname>
                                    <given-names>Yueh-yuan</given-names>
                                </name>
                                                            </contrib>
                                                    <contrib contrib-type="author">
                                                                <name>
                                    <surname>Wei</surname>
                                    <given-names>Chiu-chi</given-names>
                                </name>
                                                            </contrib>
                                                    <contrib contrib-type="author">
                                                                <name>
                                    <surname>Wei</surname>
                                    <given-names>, Chiou-shuei</given-names>
                                </name>
                                                            </contrib>
                                                                                </contrib-group>
                        
                                        <pub-date pub-type="pub" iso-8601-date="20170630">
                    <day>06</day>
                    <month>30</month>
                    <year>2017</year>
                </pub-date>
                                        <volume>4</volume>
                                        <issue>2</issue>
                                        <fpage>103</fpage>
                                        <lpage>112</lpage>
                        
                        <history>
                                    <date date-type="received" iso-8601-date="20170324">
                        <day>03</day>
                        <month>24</month>
                        <year>2017</year>
                    </date>
                                            </history>
                                        <permissions>
                    <copyright-statement>Copyright © 2014, Research Journal of Business and Management</copyright-statement>
                    <copyright-year>2014</copyright-year>
                    <copyright-holder>Research Journal of Business and Management</copyright-holder>
                </permissions>
            
                                                                                                <abstract><p>Purpose- Enterprises must increase operational efficiency to gaincompetitive advantage in this stiff global competition, and operationalefficiency is resulted from fast problem resolution and opportunitycreation. Project management has beenregarded as an effective and efficient approach to quickly solve currentproblems and create future opportunities.Speed is the most vital factor when facing with problems andopportunities; slowness will breed a small problem to a huge one, evenunmanageable, whereas a not quick enough pace will lead to opportunityuntouchable and fade away. Methodology- The challenge facing a project manager in this era ishow to complete a project quickly, and one of the most commonly used methods iscrashing, which implies shortening the project duration by increasing thenumber of workers and equipment, and by working overtime. Traditionally, it isa common believe that increasing the number of workers can certainly reduce theproject length; even the law of diminishing return is widely recognized. Thus,this study intends to explore the interaction of number increase anddiminishing return, and develop a quantitative model to concurrently considerthe number of workers, worker experience, worker training and level of teamwork to obtain the most suitable number of worker increase, to avoid waste ofhuman resources and optimize personnel utilization. Findings- To demonstrate the applicability of the proposed model,this study uses two examples to illustrate the solution procedures. The results indicate that although theproject productivity can increase along with the increase of workers, when thenumber of workers reaches a certain level, even the worker is furtherincreased, the project cannot be positively benefited; therefore, the increasedworkers are not only wasted, but also decrease the entire project productivity.Conclusion- Project managers can use the modelto identify the optimal number of additional team members, thus improving humanresource management. This study is the first theoretical verification of thelaw of diminishing returns and provides a more in-depth understanding ofcrashing, which has both academic and practical value to project management.</p></abstract>
                                                                                    
            
                                                            <kwd-group>
                                                    <kwd>Project</kwd>
                                                    <kwd>  project management</kwd>
                                                    <kwd>  crashing</kwd>
                                                    <kwd>  law of diminishing return</kwd>
                                                    <kwd>  productivity</kwd>
                                            </kwd-group>
                                                        
                                                                                                                                                    </article-meta>
    </front>
    <back>
                            <ref-list>
                                    <ref id="ref1">
                        <label>1</label>
                        <mixed-citation publication-type="journal">Christina, S.Y. &amp; Danny, S. 2008, “Project success and project team management: Evidence from capital projects in the process industries”, Journal of Operations Management, vol. 26, pp.749-766.</mixed-citation>
                    </ref>
                                    <ref id="ref2">
                        <label>2</label>
                        <mixed-citation publication-type="journal">Drucker, P.F. 1998, Managing in time of great change, London Penguin Books, UK.</mixed-citation>
                    </ref>
                                    <ref id="ref3">
                        <label>3</label>
                        <mixed-citation publication-type="journal">Deckro, R.F., Hebert, J.E., Verdini, W.A., Grimsurd, P.H. &amp; Venkateshwar, E. 1995, “Nonlinear time-cost trade off models in project management”, Journal of Computer and Industrial Engineering, vol. 28, no. 2, pp.219-229.</mixed-citation>
                    </ref>
                                    <ref id="ref4">
                        <label>4</label>
                        <mixed-citation publication-type="journal">Elmaghraby, S.E. &amp; Salem, A.M. 1982, “Optimal project compression under quadratic cost functions”, Applications of Management Science, vol. 2, pp. 1-39.</mixed-citation>
                    </ref>
                                    <ref id="ref5">
                        <label>5</label>
                        <mixed-citation publication-type="journal">El-Sabaa, S. 2001, “The skills and career path of an effective project manager”, International Journal of Project Management, vol. 19, pp.17.</mixed-citation>
                    </ref>
                                    <ref id="ref6">
                        <label>6</label>
                        <mixed-citation publication-type="journal">Falk, J.E. &amp; Horowitz, J.L. 1972, “Critical path problems with concave cost-time curves”, Management Science, vol. 19, pp.446-455.</mixed-citation>
                    </ref>
                                    <ref id="ref7">
                        <label>7</label>
                        <mixed-citation publication-type="journal">Hsu, J., S.C., Shih, S.P., Chiang, J.C. &amp; Liu, Y.C. 2012, “The impact of transactive memory systems on IS development teams&#039; coordination, communication, and performance”, International Journal of Project Management, vol. 30, pp.329-340.</mixed-citation>
                    </ref>
                                    <ref id="ref8">
                        <label>8</label>
                        <mixed-citation publication-type="journal">Kerzner, H. 1984, Project management: a system approach to planning, scheduling and controlling, New York: Van Nostrand Reinhold, USA. Kerzer, H. 2001, Project management: a systems approach to planning, scheduling and controlling, New York: John Wiley &amp; Sons, USA.</mixed-citation>
                    </ref>
                                    <ref id="ref9">
                        <label>9</label>
                        <mixed-citation publication-type="journal">Kennedy, D.M., McComb, S.A. &amp; Vozdolska, R.R. 2011, “An investigation of project complexity’s influence on team communication using Monte Carlo simulation”, Journal of Engineering and Technology Management, vol. 28, pp.109–127.</mixed-citation>
                    </ref>
                                    <ref id="ref10">
                        <label>10</label>
                        <mixed-citation publication-type="journal">Lewis, J.P. 1993, How to build and manage a winning project tea, American Management Association, New York, USA.</mixed-citation>
                    </ref>
                                    <ref id="ref11">
                        <label>11</label>
                        <mixed-citation publication-type="journal">Luthans, F. 1998, “Successful vs. effective real managers”, The Academy of management, pp.127-132.</mixed-citation>
                    </ref>
                                    <ref id="ref12">
                        <label>12</label>
                        <mixed-citation publication-type="journal">McGrath, J.E. 1984, Group interaction and performance, Englewood Cliffs NJ: Prentice-Hall, USA.</mixed-citation>
                    </ref>
                                    <ref id="ref13">
                        <label>13</label>
                        <mixed-citation publication-type="journal">Nicholas, J.M. 1990, Management business and engineering project, NJ: Prentice-Hall, USA.</mixed-citation>
                    </ref>
                                    <ref id="ref14">
                        <label>14</label>
                        <mixed-citation publication-type="journal">Pinto, J.K. &amp; Slevin, D.P. 1988, “Project success: definition and measurement techniques”, Project Management Journal, vol. 19, no. 1, pp. 67-72.</mixed-citation>
                    </ref>
                                    <ref id="ref15">
                        <label>15</label>
                        <mixed-citation publication-type="journal">Raz, T., Aaron, J.S. &amp; Dov, D. 2002, “Risk management, project success and technological uncertainty”, R&amp;D Management, vol. 32, no. 2, pp. 101-109.</mixed-citation>
                    </ref>
                                    <ref id="ref16">
                        <label>16</label>
                        <mixed-citation publication-type="journal">Turner, J.R. &amp; Muller, R. 2003, “On the nature of the project as a temporary organization”, International Journal of Project Management, vol. 21, no. 7, pp.1-8.</mixed-citation>
                    </ref>
                                    <ref id="ref17">
                        <label>17</label>
                        <mixed-citation publication-type="journal">Wei, C.C. and Wang, F.C. M. 2003, “Efficient approaches of linearization in project compression”, Computers &amp; Industrial Engineering, vol. 44, pp.695–706.</mixed-citation>
                    </ref>
                            </ref-list>
                    </back>
    </article>
