A Study on the Supply Chain Performance of Manufacturing Industries in Union Territory of Puducherry...
Transcript of A Study on the Supply Chain Performance of Manufacturing Industries in Union Territory of Puducherry...
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A STUDY ON THE SUPPLY CHAIN PERFORMANCE OF MANUFACTURING
INDUSTRIES IN UNION TERRITORY OF PUDUCHERRY, INDIA.
C. Ganesh Kumar
Ph. D Research ScholarDepartment of Management Studies,
School of Management,
Pondicherry University,Puducherry- 605014, INDIA
Mobile: +91-97861-47867
E-Mail ID:[email protected]
Dr. T. NambirajanProfessor
Department of Management Studies,School of Management,
Pondicherry University,
Puducherry- 605014, INDIA
Mobile: +91-94433-84550
E-Mail ID: [email protected]
ABSTRACT
The purpose of this research work is to empirically test the relationships among supply
chain performance and business demographical variables.Data for the study were collected from asample of 255 SMEs and large scale manufacturing enterprises operating within the Union
Territory of Puducherry, India. The research variables were tested using chi-square test along with
correspondence analysis, analysis of variance (ANOVA) and canonical correlation.Based on thechi-square analysis, Supply chain performance has significant association with types of industry
and nature of industry. Finally the result indicates that there is a 12% of the variance shared
between supply chain performance and business demographical variables.
Key words: Supply Chain Performance, Business Demographical and Manufacturing Industry
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1. INTRODUCTION
Globalization and intensive world-wide competition along with the technological advancements
create an entirely new business environment for the manufacturing organizations. Initially,
manufacturing companies have accomplished massive productivity gains through the
implementation of lean production in response to this intensifying competition. The waste has
eliminated from many different local operations for the sake of better productivity. Currently such
type of massive productivity improvements for many manufacturing organizations is very limited.
Instead, there is a huge improvement potential to reduce the inefficiencies caused by the poor
performance of the suppliers, unpredictable customer demands, and uncertain business
environment.
An integrated supply chain has a clear advantage on the competitiveness of the individual
companies. As a result, the chain-chain competition has started to take over the enterprise-
enterprise competition, although many enterprise-enterprise competitions do exist particularly in
the less developed economies (Koh et al., 2006).
The forward-looking enterprises today are dynamic; they collaborate with suppliers, customers and
even with competitors; share information and knowledge aiming to create a collaborative supply
chain that is capable of competing if not leading the particular industry. Hence, gaining
competitive edge under such a cut-throat environment becomes increasingly difficult.
2. LITERATURE REVIEW
The relationship between financial and non-financial measures of organizational
performance has long been discussed in organization and strategy literature. York and Miree
(2004) argue that non-financial performance such as improved quality, innovativeness and resource
planning should actually reduce costs, and thus have a positive effect on measures of financial
performance. Increased quality helps SMEs and large scale enterprises to retain current customers
and create greater customer loyalty, which in return may increase market share and organizational
performance (Rust et al., 1994).
A number of prior studies demonstrate positive relationship between operational performance
dimensions such as product quality, (Larson and Sinha, 1995) innovation and R&D (Prajogo and
Sohal, 2001 ;) employee performance (Fuentes-Fuentes et al., 2004). Increase in operational
performance may lead to high levels of organizational performance related to SCM in terms of
increased sales, organization-wide coordination and supply chain integration.
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It is generally recognized that it is difficult to select a single measure of firm performance. The
literature lists several quantitative objectives that can be set to guide performance over a period of
time, as well as qualitative objectives (Hunger and Wheelen, 1993;). It has been argued that as
there are obvious difficulties in obtaining quantitative measures, there is a strong a priori case that
qualitative measures should be included in assessments of performance (Chakravarthy, 1986).
Therefore, the subjective approach has been used extensively in empirical studies, based on
executives perceptions of performance, having been justified by several writers.
3. RESEARCH METHODOLOGY
Based on the literature review, a set of eight supply chain performances items were identified,
These performance variables included improvement in lead time, improvement in inventory turns,
improvement in level of inventory write off, improvement in time to market (Product development
cycle), improvement of defect rate, improvement in order item fill rate, improvement in stock out
situation and improvement in set-up times. The questionnaire was developed and pre-tested to
ensure reliability and validity of the response. Data for this study was collected using a
questionnaire that was distributed to 255 SMEs and large scale manufacturing enterprises
operating in Union Territory of Puducherry in India. The sample was selected using simple random
sampling by lottery method from the database of Department of Industry and Commerce,
Government of Puducherry.
Respondents were asked to rate the supply chain performance of their organization over the past 3
year on five-point scales ranging from 1 = very low to 5 = very high .
Apparently, this research work is to investigate the impact of business demographical variables on
the supply chain performance so the supply chain performance variables are factored into two
factors using principle component analysis and then the two supply chain factors are segmented
into three clusters of manufacturing enterprises using k-mean cluster method.
4. RESULTS AND DISCUSSION
Supply chain performance have been classified into three categories namely Low supply
Chain performance units, Moderate supply Chain performance units and high supply Chain
performance units on the basis of their Supply chain performance variables. It can be noticed that
the high supply Chain performance units will display an improved overall better performance. In
this section, the characteristics of supply chain performance segments are identified through chi-
square test along with correspondence analysis and analysis of variance (ANOVA).
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To understand the characteristics of these three supply chain performance segments, their
association with various business demographic related variables are analyzed. The chi-square test
is applied to test the significance of associations. The chi-square values along with their level of
significance are given in the following table.
TABLE 1.1: CHI-SQUARE TEST VALUE FOR VARIOUS VARIABLES
From the chi-square test it is found that Type of Industry, Number of Employees, Total
Capital Invested, Supply Chain Position, Side of Supply Chain, Type of Goods Produced, Type of
Business Organization, Type of Ownership, Type of Listing, kind of Manufacturing Manufacturing
Pattern, Type of process, Annual turnover, Market Coverage, Area of Market Business years and
Software Usage have no significant association with supply chain performance segments, while
there is a significant association between supply chain performance segments with Type of
Industry and Nature of Industry.
4.1 Relationship between Supply Chain Performance and Business Demographic Variables
The business demographic variables considered for the study are Type of Industry, Total
Capital Invested, Supply Chain Position, Side of Supply Chain, Type of Goods Produced, Type of
Variable
Chi-
Square
value
Sig.
Value
Type of Industry 26.163 0.045
Number of Employees 10.072 0.434
Total Capital Invested 2.824 0.831
Supply Chain Position 6.445 0.375
Nature of Industry 11.717 0.020Side of Supply Chain 5.130 0.077
Type of Goods Produced 1.943 0.379
Type of Business Organization 4.577 0.599
Type of Ownership 1.975 0.922
Type of Listing 9.988 0.125
What kind of Manufacturing 3.784 0.436
Manufacturing Pattern 6.434 0.376
Type of process 9.877 0.130
Annual Sales 12.374 0.261
Market Coverage 0.516 0.972
Area of Market 12.094 0.147
Business years 2.346 0.885
Software Usage 0.985 0.077
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Business Organization, Type of Ownership, kind of Manufacturing, Type of process, Annual
turnover, Business years, Number of Employees, Nature of Industry, Type of Listing,
Manufacturing Pattern, Market Coverage, Area of Market and Software Usage of the
manufacturing units.
4.1.1 Association between Type of Industry and Supply Chain performance
The chi-square value as 26.163 and significant value as 0.045 which clearly indicates that
there is significant association between Type of Industry and Supply Chain performance of
Manufacturing units.
TABLE 1.2: ANOVA FOR TYPE OF INDUSTRY AND PERFORMANCE
Supply Chain Performance F Sig. Lead Time and Inventory 1.659 0.084
Responsiveness 0.997 0.450
It is observed from table 1.2 that there is no significant difference among the groups of
manufacturing units categorized on the basis of Type of Industry in respect of Lead Time and
Inventory and Responsiveness.
FIG. 1.1 TYPE OF INDUSTRY AND SUPPLY CHAIN PERFORMANCE -
CORRESPONDENCE DIAGRAM
The association between the type of industries categories and supply chain performance
segments can be identified by using correspondence analysis. The formed associations can
be seen from the diagram. Highly supply chain performance units belong to electronics,
Electronics, Building materials, Plastic, textiles and other types of industries, while the
Moderate supply chain performance units belong to Automobile, Agriculture, Furniture,
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food and the Low supply chain performance units are associated with Chemical, metal and
pharmaceuticals industries.
4.1.2 Association between Nature of Industry and Supply Chain performance
The chi-square value as 11.717 and significant value as 0.020 which clearly indicates that
there is significant association between Nature of Industry and Supply Chain performance of
Manufacturing units.
TABLE 1.3: ANOVA FOR NATURE OF INDUSTRY AND PERFORMANCE
Supply Chain Performance F Sig. Lead Time and Inventory 1.573 0.209
Responsiveness 5.265 0.006
It is observed from table 1.3 that there is no significant difference among the groups of
manufacturing units categorized on the basis of Nature of Industry group with respect to Lead
Time and Inventory, while there is a significant difference among the groups in respect of
Responsiveness.
TABLE 1.4: DUNCAN TABLE FOR NATURE OF INDUSTRY AND RESPONSIVENESS
PERFORMANCE
Nature of
Industry N
Subset for alpha =
0.05
1 2
Medium Scale 94 3.2660
Small Scale 115 3.6217
Large Scale 46 3.6304
Sig. 1.000 0.951
The post hoc analysis is carried out with Duncan method to understand inter group difference
among Nature of Industry with respect to responsiveness performance. Duncan table (Table 1.4)
indicates that two homogeneous sub groups can be formed among the three groups of
manufacturing units categorized on the basis of Nature of Industry in respect of responsiveness
performance. The difference in mean values among the two homogenous groups of Medium Scale
industry group, and Small Scale and Large Scale industry group is significant at 99 percent
level of confidence (table 1.3, Significant value is 0.006). This means that there is a significant
difference among groups of manufacturing units categorized on the basis of Nature of Industry
with respect to responsiveness performance.
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FIG. 1.2 NATURE OF INDUSTRY AND SUPPLY CHAIN PERFORMANCE -
CORRESPONDENCE DIAGRAM
The association between the groups of units categorized based on Nature of Industry and
supply chain performance segments can be identified by using correspondence analysis.
The formed associations can be seen from the diagram. Highly supply chain performance
units belong to large scale industry group, Moderate supply chain performance units belong
to medium scale industry group, and Low supply chain performance units are associated
with small scale industry segment.
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TABLE 1.5: CANONICAL CORRELATION BETWEEN SUPPLY CHAIN
PERFORMANCE AND BUSINESS DEMOGRAPHICAL VARIABLES
e = exact, a = approximate, u = upper bound on F
Roy's largest root .135259 2 252 17.0427 0.0000 uLawley-Hotelling trace .135818 4 500 8.4886 0.0000 a Pillai's trace .119702 4 504 8.0213 0.0000 a
Wilks' lambda .880365 4 502 8.2557 0.0000 eStatistic df1 df2 F Prob>F
Tests of significance of all canonical correlations
0.3452 0.0236
Canonical correlations:(Standard errors estimated conditionally)
ind_nature .1143118 3.634695 0.03 0.975 -7.043665 7.272289
ind .2915122 .8097826 0.36 0.719 -1.303231 1.886256v2
response 1.438354 3.835322 0.38 0.708 -6.114727 8.991435leadtime -1.486049 4.288398 -0.35 0.729 -9.931395 6.959296
u2
ind_nature 1.358312 .233479 5.82 0.000 .8985106 1.818113ind -.0851417 .0520174 -1.64 0.103 -.1875819 .0172986
v1
response .0009535 .2463666 0.00 0.997 -.4842279 .486135leadtime .6149735 .2754705 2.23 0.026 .0724764 1.157471
u1
Coef. Std. Err. t P>|t| [95% Conf. Interval]
A canonical correlation analysis was conducted using the two supply chain performance factors as
predictors of the two business demographical variables that was significant in the chi-square test to
evaluate the multivariate shared relationship between the two variable sets (i.e., supply chain
performance factors and business demographical). The analysis yielded two functions with
canonical correlations (r) of 0 .3452, and 0.0236 for each successive function. Collectively, the full
model across all functions was statistically significant using the Wilkss = 0.8804 criterion, F(4,
502) = 8.2557,p < 0.01. Because Wilkss represents the variance unexplained by the model, 1
yields the full model effect size in an r2 metric. Thus, for the set of three canonical functions, the r2
type effect size was 0.12, which indicates that the full model explained a substantial portion, about
12% of the variance shared between the variable sets that are two supply chain performance factors
and two business demographical variables.
5. CONCLUSION AND IMPLICATIONS
This paper has provided empirical justification for a relationship between of supply chain
performance and business demographic variables within the context of manufacturing in Union
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Territory of Puducherry. Supply chain performances segments have significant association with
types of industry and nature of industry and also indicates that nature of industry have significant
difference with responsiveness performance.Finally the result indicates that there is a 12% of thevariance shared between two supply chain performance factors and two business demographical
variables. The analysis of the relationship between supply chain performance and business
demographical variables might directly influence the overall firm performance. Perhaps, the most
serious limitation of this study was its narrow focus on Puducherry manufacturing Enterprises, thus
precluding the generalization of findings to other emerging countries as well as other sectors such
as service and government sectors that may benefit from a sound SCM strategy. This researchpaper adds to the body of knowledge by providing new data and empirical insights.
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