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The effect of value-added activities of key suppliers on the performance of manufacturing firms

Jum'a Luay

Polish Journal of Management Studies

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2020

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Vol. 22, No. 1

231--246

EN

The impact of value-added activities provided by key suppliers on the performance of manufacturing firms was measured in this study. Based on a literature review, four added-value activities: supplier customized services, logistics collaboration, information sharing, and innovation and development were focused on. Data collected from various levels of managers in manufacturing firms in Amman, Jordan was used to test the proposed research model. A quantitative approach was employed, and a survey (structured questionnaire) conducted to collect primary data. The final sample included 126 respondents, representing a 63% response rate. The proposed research model was analyzed and tested using SPSS version 22. All value-added activities were found to have a statistically significant effect on the manufacturing firms in Jordan and the dimension of logistics collaboration had the greatest effect on performance. This research model can be applied to future studies of multiple sectors in Jordan or the same sector in multiple countries to examine the effect of value-added activities on different firm’s performance levels.

PL

W niniejszym badaniu mierzono wpływ działań o wartości dodanej świadczonych przez kluczowych dostawców na wyniki firm produkcyjnych. Na podstawie przeglądu literatury skoncentrowano się na czterech działaniach o wartości dodanej: usługach dostosowanych do potrzeb dostawców, współpracy logistycznej, wymianie informacji oraz innowacjach i rozwoju. Do przetestowania proponowanego modelu badawczego wykorzystano dane zebrane od różnych szczebli menedżerów w firmach produkcyjnych w Ammanie w Jordanii. Zastosowano podejście ilościowe i przeprowadzono ankietę (ustrukturyzowany kwestionariusz) w celu zebrania danych pierwotnych. Ostateczna próba obejmowała 126 respondentów, co odpowiadało 63% wskaźnikowi odpowiedzi. Zaproponowany model badawczy został przeanalizowany i przetestowany przy użyciu SPSS w wersji 22. Stwierdzono, że wszystkie działania o wartości dodanej miały statystycznie istotny wpływ na firmy produkcyjne w Jordanii, a wymiar współpracy logistycznej miał największy wpływ na wyniki. Ten model badawczy można zastosować w przyszłych badaniach wielu sektorów w Jordanii lub tego samego sektora w wielu krajach w celu zbadania wpływu działań o wartości dodanej na poziomy wydajności różnych firm.

2

Risk-based maintenance assessment in the manufacturing industry: minimisation of suboptimal prioritisation

Ratnayake R. M. Chandima, Antosz K.

Management and Production Engineering Review

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2017

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Vol. 8, No. 1

38--45

EN

Manufacturing firms continuously strive to increase the efficiency and effectiveness in the maintenance management processes. Focus is placed on eliminating the unexpected failures which cause unnecessary costs and the production losses. Risk-based maintenance (RBM) strategies enable to address the above through the identification of probability and consequences of potential failures whilst providing a way for prioritisation of maintenance actions based on the risk of possible failures. Such prioritisations enable to identify the optimal maintenance strategy, intervals of maintenance tasks, and optimal level of spare parts inventory. However, the risk assessment activities are performed with the support of a risk matrix. Suboptimal classifications and/or prioritisations arise due to the inherent nature of the risk matrix. This is caused by the fact that there are no means to incorporate actual circumstances at the boundary of the input ranges or at the levels of linguistic data and risk categories. In this paper, a risk matrix is first developed in collaboration with one of the manufacturing firms in Poland. Then, it illustrates the use of fuzzy logic for minimisation of suboptimal prioritisation and/or classifications using a fuzzy inference system (FIS) together with illustrative membership functions and a rule base. Finally, an illustrative risk assessment is also demonstrated to illustrate the methodology.

3

The impact of lean supply chain on productivity of Saudi manufacturing firms in Al-Qassim region

Al-Tit A.

Polish Journal of Management Studies

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2016

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Vol. 14, No. 1

18--27

EN

The objective of this study is to identify the contribution of the lean supply chain (LSC) to manufacturing firms in the Kingdom of Saudi Arabia (KSA). Out of the population of the study, 150 firms were selected from the Al-Qassim region to encompass the sample of the study. Four variables include waste elimination, cost reduction, manufacture–supplier relationship, and manufacture–customer relationships were constructed as predictors of productivity. A questionnaire-based survey was conducted to collect the study variables. A total of 75 questionnaires were distributed in the sample, of which 69 were returned. All of them were valid for the statistical analysis. The results of the study confirmed the hypotheses that the constructed predictors could predict the productivity of the manufacturing firms in the Al-Qassim region. That is, there were statistically significant impacts of LSC dimensions on the productivity. The study contributes to the body of supply chain (SC) literature by providing evidence on the positive impact of LSC on productivity in an Arabian context, particularly in KSA. However, the study was conducted in one industrial region in the KSA, therefore the generalization of the findings may not be applicable to other firms in the same country or other countries.

PL

Artykuł przedstawia wpływ wyszczuplenia łańcuchów dostaw w regionie Al-Qassim na produktywność. Dla celów badawczych przyjęto cztery zmienne: usuwanie odpadów, redukcję kosztów, relację producenci-dostawcy oraz relację producenci-klienci. Badaniem objęto 69 firm i poddano je analizie statystycznej. Otrzymane wyniki potwierdziły sformułowaną przez autorów hipotezę. Oznacza to, że występuje znaczący wpływ stopnia, w jakim zastosowano wyszczuplenia łańcuchów dostaw na produktywność. Badanie stanowi przyczynek do dalszych badań w tym obszarze.