Xingxin Zhao, Xinrui Zhan and Jiafu Su
This study explores the contingent relationship between technological diversification (TD) and innovation performance, particularly in the context of China’s high-tech firms. It…
Abstract
Purpose
This study explores the contingent relationship between technological diversification (TD) and innovation performance, particularly in the context of China’s high-tech firms. It aims to understand how the structure of firm ownership influences the allocation of innovation resources and, consequently, the efficiency of innovation activities.
Design/methodology/approach
The research employs a fixed-effect regression model to analyze a unique panel dataset of 1,139 Chinese listed high-tech firms over a nine-year period. The dataset includes firm-year observations from 19 industries, allowing for a comprehensive analysis of the relationships between TD, innovation performance and ownership structure.
Findings
This study finds an inverted U-shaped relationship between TD and innovation performance, indicating that while a certain level of TD can enhance innovation performance, excessive diversification can lead to diminishing returns. The findings also reveal that ownership concentration amplifies this relationship, suggesting that firms with more concentrated ownership structures can quickly reach optimal levels of innovation performance but are also more susceptible to the “over-diversification trap.” In contrast, equity restriction and ownership type (state-owned vs privately owned enterprises) moderate the relationship, indicating that firms with these structures may maintain optimal innovation performance levels for longer periods.
Originality/value
This research provides novel insights by confirming a nonlinear, inverted U-shaped relationship between TD and innovation performance, specifically within the context of Chinese high-tech firms. By integrating corporate governance theory, our study advances understanding of how ownership structure – through ownership concentration, equity restriction and ownership type – moderates the TD-innovation performance relationship. This perspective offers a deeper understanding of resource allocation and innovation efficiency in emerging markets. The findings hold practical implications for managers and policymakers, underscoring the importance of aligning TD strategies with firm ownership structures to optimize innovation outcomes.
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Xingxin Zhao, Jiafu Su, Taewoo Roh, Jeoung Yul Lee and Xinrui Zhan
The purpose of this study is to examine the impact of technological diversification (TD) on enterprise innovation performance, meanwhile focusing on the moderating effects of…
Abstract
Purpose
The purpose of this study is to examine the impact of technological diversification (TD) on enterprise innovation performance, meanwhile focusing on the moderating effects of various organizational slack (i.e. absorbed and unabsorbed slack) and ownership types (i.e. state-owned or privately-owned) in the context of Chinese listed firms.
Design/methodology/approach
This study formulates five hypotheses based on organization and agency theories. Our empirical analysis employs a fixed-effect regression estimator with a unique panel dataset of Chinese-listed manufacturing firms and 13,566 firm-year observations over 9 years from 2012 to 2020.
Findings
Our findings show that an inverted U-shaped relationship exists between TD and innovation performance, varying with different types of organizational slack and ownership. In state-owned enterprises (SOEs), unabsorbed slack negatively moderates the inverted U-shaped relationship; however, in privately-owned enterprises (POEs), this relationship is positively moderated. Although absorbed slack has negative moderating effects in both SOEs and POEs, its impact is only significant for POEs.
Practical implications
Our results imply that organizational slack has a contrasting impact on the relationship between TD and innovation performance when the type of ownership varies. Therefore, the managers that intend to achieve optimal innovation performance through TD should understand how organizational slack can be leveraged.
Originality/value
This study contributes to the existing literature by applying the relationship between TD and innovative performance to the transition economy, as well as examining the double-edged sword impact of state ownership on firm innovation performance.
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Xingxin Liang and Zhiyong Yang
This paper aims to confirm that increasing the hardness of thrust collars can improve the load carrying capacity (LCC) and wear resistance of water lubricated thrust bearings…
Abstract
Purpose
This paper aims to confirm that increasing the hardness of thrust collars can improve the load carrying capacity (LCC) and wear resistance of water lubricated thrust bearings (WTBs) made of polymers paired with non-polymeric thrust collars, and to design a WTB with high LCC and durability for a shaftless pump-jet propulsor of an autonomous underwater vehicle. Six kinds of WTBs were manufactured by matching aluminum bronze, stainless steel and silicon nitride with two different polymer bearing materials. Their tribological behaviors were tested and compared.
Design/methodology/approach
The tribological behaviors of the WTBs made with different materials were investigated experimentally on a specially designed test rig.
Findings
Aluminum bronze is not suitable for crafting thrust collars of heavy load WTBs due to severe abrasive wear. Two body abrasive wear first occurred between the thrust collar and the polymer bearing. Next, aluminum bronze wear particles were produced. The particles acted between the two materials and formed three body abrasive wear. Stainless steel/polymer bearings showed better wear resistance while Si3N4/polymer bearings were the best. Improving the hardness of thrust collars is significant to the LCC and service life of WTBs.
Originality/value
The wear mechanism of WTBs under heavy load conditions was revealed. Improving the hardness of the thrust collar was confirmed to be a preferable method to improve the wear resistance and LCC of WTBs. The results of this study may provide an important reference for the selection of water lubricated materials and the design of heavy load WTBs.
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Purpose – To describe and analyze the situation prior to and during the initial stages of internationalization of Chinese SMEs, as well as analyzing the role of clusters as…
Abstract
Purpose – To describe and analyze the situation prior to and during the initial stages of internationalization of Chinese SMEs, as well as analyzing the role of clusters as take-off nodes for such firms.
Methodology – A multiple case study is conducted based on semistructured interviews with five private-owned exporting Chinese SMEs. Also, data on Chinese industrial clusters are analyzed.
Findings – The findings complement the model presented with new knowledge. In the take-off situation, Chinese SMEs deviate from assumed paths due to disadvantages in the emerging Chinese market. In the initial stages of internationalization, the focus on indirect exports hinders the building of international relationships being the key for further international expansion. Cluster localization is a take-off node for individual dedicated exporters into international markets.
Research limitations – Few cases, co-location of firms in the advanced Yangtze River Delta region and issues of Chinese versus Western SME definitions limits the possibility to generalize the findings of the study.
Practical implications – Chinese as well as foreign firms can gain from this paper regarding, for example, that competitiveness built up abroad can be utilized for increasing the market share in an attractive domestic market, the pitfall of indirect exports can be overcome by developing direct international relationships, and cluster localization can spur the internationalization of (individual) Chinese SMEs.
Originality – Empirical contribution of internationalization patterns of Chinese private-owned SMEs as well as pinpointing the importance of the domestic market as trigger for internationalization.
David Kimera and Fillemon Nduvu Nangolo
The purpose of this paper is to review maintenance practices, tools and parameters for marine mechanical systems that can be classified as plant, machinery and equipment (PME). It…
Abstract
Purpose
The purpose of this paper is to review maintenance practices, tools and parameters for marine mechanical systems that can be classified as plant, machinery and equipment (PME). It provides an insight for the maintenance crew on which maintenance parameters and practices are critical for a given PME systems.
Design/methodology/approach
The review paper characterizes the various maintenance parameters and maintenance practices used onshore and offshore for PME and identifies the possible gaps.
Findings
A variety of maintenance techniques are being used in the marine industry such as corrective maintenance, preventive maintenance and condition-based maintenance. As marine vehicles (MV) get older, the most important maintenance parameters become maintenance costs, reliability and safety. Maintenance models that have been developed in line with marine mechanical systems have been validated using a single system, whose outcome could be different if another PME system is used for validation.
Research limitations/implications
There is a limited literature on MV maintenance parameters and maintenance characterization regarding mechanical systems. The maintenance practices or strategies of marine mechanical systems should be based on maintenance parameters that suit the marine industry for a given PME.
Originality/value
Based on the available literature, the paper provides a variety of maintenance framework, parameters and practices for marine mechanical systems. The paper further gives an insight on what maintenance parameters, strategies and platforms are given preference in the shipping industry.