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The purpose of this paper is to comprehensively investigate the combined influence of a firm's political connection and diversification on corporate performance, and to explore whether firm's political connection has an impact on the diversification effect, and whether this diversification effect would promote its performance significantly or not.

The research used a regression model to explore the correlation among political connection, diversification strategy, and corporate performance. The research subjects are the private enterprises listed on Shanghai and Shenzhen Stock Exchange in China for the period 2002‐2005.

The study found that: first, for those firms without political connections, the relationship between diversification strategy and corporate performance displayed an “inverted U” curve; for firms with political connection, the relationship was a “reverse L”. Second, firms with political connections are more likely to implement a diversification strategy, especially unrelated diversification. Third, when implementing an internationalization strategy, private enterprises with political connections are more likely to expand through unrelated diversification strategy. Fourth, the diversification of the enterprises with political connection are more likely to promote the short‐term accounting performance than those without political connection, but the unrelated diversification of politically connected enterprises would have a negative impact upon its future performance, that is to damage the company's market value.

The paper expands the literature on the relationship between diversification and firm performance. It contributes to the research about the influence of political connection upon corporate performance.

Based on upper echelons (UE) theory, the purpose of this study is to investigate a conceptualized moderated mediation model for examining the effects of top management team (TMT) heterogeneity and firm value in China through the mediating effect of product diversification, the moderating effect of ownership type between TMT heterogeneity and product diversification and the moderating effect of executive shareholding between product diversification and firm value.

Unbalanced panel data were collected over 5 years with a total of 6,597 observations, organized through the WIND (Wind Economic Database) and CSMAR (China Stock Market and Accounting Research) Database. The hypotheses were tested using structural equation modeling and analyzed with stata15.0 software.

The results indicated that product diversification plays a mediating role between TMT heterogeneity and firm value. In China, TMT heterogeneity of non–state-owned enterprises plays a more significant role in promoting product diversification than that of state-owned enterprises; executive shareholding strengthens the relationship between product diversification and firm value.

The characteristic dimension of TMT is seen as a relatively static factor, and it is worth looking at whether a more dynamic system of evaluation and measurement can be established.

This study enriches theoretical research on TMT and contributes to UE theory in several ways. First, we studied the mediation effect of product diversification between TMT heterogeneity and firm value. This extends research on UE theory to possible process variables. Second, considering the influence of the unique institutional environment in China on corporate strategic decisions, the study investigates state-owned and non–state-owned enterprises. Specifically, it looks at the influence of ownership type as a moderating variable between TMT heterogeneity and product diversification. Third, the paper discusses the moderating effect of executive shareholding on the product diversification–firm value relationship. The research contributes to agency theory and expands research on different economic systems by implementing agency theory.

To test the hypothesis of increased specialisation during the 1980s in the aggregate pattern of intercorporate ownership in the Canadian economy.

The network of ownership between enterprises and subsidiaries is characterised for the period 1976‐1995 using data for the population of medium‐sized and large Canadian corporations collected by Statistics Canada.

Aggregate diversification declined slightly over the period in terms of the average number of industry groups in which enterprises have subsidiaries. However, there was an increased likelihood that subsidiaries were outside of the core industry group of the enterprise.

The data provide insight into ownership changes across the economy and are not sensitive to changes in a few very large firms. However, a weakness of these data is that the ownership linkages are not weighted to reflect the economic importance of the enterprises involved. There is evidence that the pattern of inter‐corporate ownership is different between manufacturing and service sectors. Future research should treat these separately.

Increased specialisation to the core industry of an enterprise has implications for the management skills required to design and manage networks of independent firms (for example, through strategic alliances), the performance expectations and risks taken by shareholders, and the commercial and tax policies set by government. At an aggregate level, a reduction in diversification may change the industrial structure of the economy, with sectors less integrated through ownership relationships, and thus potentially more sensitive to patterns of market exchange.

Much of the literature on the effect of ownership restructuring on aggregate diversification is focused on the US economy, and there is little empirical evidence in the Canadian context. The data are unique, representing a population of medium‐sized and larger firms. To our knowledge there are no published analyses of the ownership structure represented in these data.

The global recession caused by the COVID-19 pandemic has led to the closure of thousands of village-owned enterprises (VOEs), which are community-managed enterprises that operate in the hostile rural areas in emerging economies. Thus, considering that a Schumpeterian view of economic downturn sees recessions as times where old products/services decline while new products/services emerge, this paper aims to explore the specific innovation-based diversification strategies that matter for the survival of emerging economy VOEs in recession periods to develop new theoretical insights.

The study is based on multiple-case studies of 13 leading VOEs operating in the rural areas of Java Island in Indonesia, an emerging economy. The data was analysed using within-case and cross-case analyses.

Overall, a number of major novel findings have emerged from the analysis, based on which the authors developed several new propositions. First, from the perspectives of both new product and new service diversification, “unrelated diversification” is the primary resilience strategy that seems to be associated with the survival of VOEs in the COVID-19 recession, over and above “related diversification”. Second, from an industrial sector diversification perspective, the most dominant resilient strategy for surviving the recession is “unrelated diversification into tertiary sectors (service sector)”, over and above diversification into the primary sector (agriculture, fisheries and mining) and secondary sector (manufacturing and construction).

The authors contribute to the literature on entrepreneurship in emerging economies by identifying the resilience diversification strategies that matter for the survival of VOEs in recession.

Drawing upon the extended resource-based view (ERBV), this research aims to examine the effects of supply chain diversification (SCD) on enterprise digital transformation (DT), focusing on the external perspective of the supply chain.

Leveraging panel data from Chinese A-share listed companies from 2015 to 2022, this research employs multiple regression analysis to empirically examine the relationship between SCD and enterprise DT.

The results of analysis indicate that: (1) SCD positively influences enterprise DT, a relationship that persists even after rigorous endogenous and serial robustness testing. (2) SCD fosters enterprise DT by bolstering its absorption, innovation, and adaptive capabilities. (3) Executive risk preferences and Pilot Policies positively mediate the effects of SCD on enterprise DT.

This research provides novel empirical insights into the underlying mechanism linking SCD and enterprise DT. The findings offer valuable guidance for enterprises seeking to optimize supply chain management and embrace DT, while also informing policymakers on strategies to facilitate SCD and DT enhancement among enterprises.

The purpose of this paper is to investigate the characteristics of crop-livestock diversification among smallholders in the forest-savannah agroecological zone of Ghana.

The study uses a stochastic input distance function to investigate the evidence of economies of diversification and its effect on determining diversification decisions of smallholders in Ghana. Furthermore, this study also explores evidence of scale economies in integrated crop-livestock systems among smallholder farmers.

The empirical results show that economies of diversification are significant in determining diversification decisions of smallholders. The economies of scale are evident in integrated crop-livestock systems in Ghana, suggesting that opportunities exist to expand crop-livestock outputs without employing additional inputs or improved production technologies. Crop-livestock diversification is a desirable strategy for improving overall farm productivity among smallholders in Ghana. Economies of diversification were found to be significant among the output combinations, maize with other crops and other crops with livestock, in integrated crop-livestock production systems.

This study is based on a cross-sectional data set. Hence, the findings may be subject to some limitations; however, the authors have sought to minimise such limitations.

The results imply that crop-livestock diversification is a desirable strategy for improving overall farm productivity. Therefore, the findings are useful for policymakers to design appropriate strategies for enhancing the production of specific output combinations in crop-livestock diversification systems among smallholders in Ghana. Specifically, such policies should promote the production and integration of crops such as legumes with other crops, and livestock with other crops in diversified farming systems to enhance overall farm productivity. This will reduce food insecurity and poverty among rural farm households and the entire rural population.

These results indicate that to improve crop-livestock productivity through diversification, and reduce the effect of climate variability, it is imperative to provide the enabling environment that will facilitate and encourage production of these output combinations among smallholders in Ghana. The empirical results enhance the literature by providing empirical evidence of the complementary synergies and economies of diversification in integrated farming systems and, hence, make recommendations for improving these farming systems.

The peer review history for this paper is available at: https://publons.com/publon/10.1108/IJSE-04-2019-0274.

This study aims to analyze the factors that determine non-farm enterprise diversification among farm households in Ethiopia. It extends the analysis by examining enterprises and using pooled data, which has the capacity to generate more accurate outcomes. The existing empirical evidence has focused on all non-farm activities, based on single period, single region data. Much of the existing empirical evidence is based on small-scale and location-specific sample surveys that do not demonstrate the characteristics of aggregate populations.

The empirical analysis was conducted using a quantitative method. To cater to the censoring nature of participating in non-farm enterprise activities, a panel data double-hurdle model is used to a representative sample of 3,594 Ethiopian rural households.

The study finds that the age of household head, household size, distance to the market, social capital and access to credit, are determinants for owning one or more non-farm enterprises. The level of income from these enterprises is then determined by the age and education level of the household head, household size, agricultural equipment, distance to markets and access to credit.

This study brings to light factors that influence households to participate in non-farm enterprises and the determining factors for the income level.

Non-farm activities are an important source of household income and a driver of development. This paper provides empirical evidence on factors that determine enterprise ownership using panel data.

The agricultural sector in the USA has experienced significant structural changes. For accommodating farm business, households have diversified their operations adopting various strategies—agricultural, structural, environmental, and income strategies. The purpose of this study is to analyze the factors influencing farmer’s diversification strategies while taking into account the simultaneous decision-making process.

This study uses a nation-wide farm household data from the US. The diversification decisions are analyzed using multivariate probit regressions.

The study suggests that agricultural, structural, environmental, and income diversification strategies are interlinked. Specifically, results indicate that, on one hand, environmental and income diversification strategies are positively interlinked. On the other hand, agricultural and structural diversification strategies are positively interlinked. Additionally, the factors representing location, farm, and farmer characteristics, farm type, and financial condition of the farm are major determinants in the choice of farm diversification strategies.

In this paper, diversification activities are broadly classified under four strategies: agricultural, structural, environmental, and income. Depending on the context and country, the definition and strategy set may need revision.

Strong complementary between diversification strategies suggests that studies analyzing farm household decisions and strategies need to account for the simultaneous decision-making process. As decisions are interlinked, separately analyzing one specific strategy may lead to biased estimates. Farm business households need to develop multiple skills and flexible capacities to tackle farming-related issues, including structural changes, risk management, and income enhancing activities. Improving employment opportunities for the rural farming population can stimulate structural diversification.

This paper contributes to limited literature about diversification by analyzing factors influencing different diversification decisions and finds interlinkage between decisions.

The purpose of this paper is to explore enterprise diversification amongst wetland farmers in Zambia as a way of reducing poverty and improving sustainability. This paper identifies ways in which such entrepreneurial activities can be supported and applied more widely.

A qualitative study of Zambian farmers, based on a series of workshops and interviews held in Zambia with farmers and farm business advisers.

Despite adopting new technologies most farmers are restricted to the local market where their increased production holds down prices. However, a very small number of farmers are able to progress to production and marketing for markets in major urban centres hundreds of kilometres away, and considerably more are able to use the capital accumulated from wetland farming to diversify their household enterprises to reduce poverty and improve the sustainability and resilience of their livelihoods.

No work has previously been undertaken in diversification strategies of small-scale farmers in Zambia.

The purpose of this paper is to identify the trends in crop diversification (CD) while examining its impact on the technical efficiency of peasant farmers in Nigeria.

The paper employs the Herfindahl and Ogive indices to compute the diversification indices and the stochastic frontier production model (SFPM) to estimate the technical efficiency (TE) level of the farms using unbalanced panel data covering three farming seasons (2006/2007 to 2008/2009).

The results of both the Herfindahl and Ogive indices showed that cropping pattern increased significantly with the intensification of crop diversification in the study across the three seasons. The result of the SFPM shows evidence of decreasing returns‐to‐scale and technical progress in the food crop production in the region. Education, extension, and CD are identified as efficiency increasing policy variables while an average TE level of about 81 percent was obtained from the analysis.

To the best of the author's knowledge, this the very first study that employs panel data to analyze technical efficiency of farms in Nigeria.