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The purpose of this paper is to investigate the effect of diversification on returns of firms in chemical and oil industries.

In order to control for market effect, industry effect, and effects of endogenous variables of a sample firm that lead the firm to decide to diversify or refocus on stock returns, three‐factor asset‐pricing models introduced by Fama and French are used in each industry.

It is found that diversified firms have significantly higher returns than focused firms in both chemical and oil industries. It is also found that the three‐factor model explains much of the variation in the average stock returns for both focused firms and diversified firms, which is consistent with Fama and French.

Provides new evidence for the effect of diversification on firm returns in oil and chemical industries.

This paper aims to analyse the viability of production processes in the framework of three industries, referred to here as “automotive”, “machine-tool” and “other transport material”. This idea is of interest as a result of the cognitive convergence that has arisen from the widespread of information and communication technologies in the technical solutions used by most of the product fields that make up the manufacturing industry.

Under the framework of evolutionary theory and based on the cognitive composition of the technical solutions used by the industries studied, this paper has drawn up technology profiles for those industries from the viewpoint of formal logic. These profiles will help us to analyse their potential and difficulties so as to bridge the cognitive gap and enabling them to access new paths and set up processes to diversify their output. Interviews with company management staff and high-ranking experts have provided us with highly useful information to help us complete the theoretical reflection and check it against expected behaviour patterns.

The results confirm that firms in the industries studies find it difficult to drive forward diversification processes. The analysis provides a theoretical explanation for the empirical results that can be found in the literature on the extent to which path dependency processes explain technology dynamics.

The limitations of this study lie on the one hand in the small number of firms interviewed (it would be useful to extend the sample to include other medium- and high-technology industries to see whether the results are confirmed) and on the other hand, in the possibility that the Covid-19 crisis may affect results, investment decisions and access to financial resources, and thus, upset plans for diversification.

There is a consensus that decision-making in general, and in management in particular, is plagued by unpredictability, risk and uncertainty (Baldwin et al., 2005; Bergh et al., 2011). Managers making deliberate strategic choices – which usually require long time horizons and involve high risk (Perello-Marin et al., 2013) – need to know whether the competitive future of their firms lies mainly in product innovation (diversification), in process and organisational innovation, in the internationalisation of production, in mergers or in other, alternative paths (Sydow et al., 2009). This study presents empirical evidence of the possibilities and difficulties faced by firms based on their technology profiles. This is a complex approach that calls for more research effort if it is to become an option for enhancing resilience and flexibility at firms and strengthening their ability to react to changes. According to Raynor (2002) diversification, understood dynamically, provides a way for companies competing in especially turbulent industries to hedge against uncertain future reconfigurations of industry boundaries. Palich et al. (2000) state that compared with single-business firms, firms engaging in related diversification are able to exploit synergies across product units by consolidating business activities in manufacturing, marketing, raw material purchases and R&D, and thus, achieve both scale and scope economies.

The manuscript is absolutely original in terms of its approach and design and sets out to analyse industrial diversification processes on the basis of the cognitive characteristics of the technical solutions used by the various industries.

Ronald Coase's landmark 1937 article, “The Nature of the Firm,” framed the study of organizational economics for decades. Coase asked three fundamental questions: Why do firms exist? What determines their boundaries? How should firms be organized internally? To answer the first question, Coase famously appealed to “the costs of using the price mechanism,” what we now call transaction costs or contracting costs, a concept that blossomed in the 1970s and 1980s into an elaborate theory of why firms exist (Alchian & Demsetz, 1972; Williamson, 1975, 1979, 1985; Klein, Crawford, & Alchian, 1978; Grossman & Hart, 1986). The second question has generated a huge literature in industrial economics, strategy, corporate finance, and organization theory. “Why,” as Coase (1937, pp. 393–394) put it, “does the entrepreneur not organize one less transaction or one more?” In Williamson's (1996, p. 150) words, “Why can't a large firm do everything that a collection of small firms can do and more?” As Coase recognized in 1937, the transaction-cost advantages of internal organization are not unlimited, and firms have a finite “optimum” size and shape. Describing these limits in detail has proved challenging, however.¹

Diversified business groups have become active players in Chinese economy in the recent years. While several studies have been conducted to examine the role of external factors such as market imperfection on firms' decisions to diversify, relatively few efforts have been made to investigate the impact of internal factors such as ownership structures on such decision. Building on agency theory, this paper attempts to examine the impacts of ownership type and ownership concentration on Chinese business groups' diversification strategies.

Year 2000 annual reports of publicly traded companies on Shenzhen Stock Exchange were used to identify business groups and collect data. Multiple regression analysis was used to conduct the data analysis.

The results indicate that compared to other ownership structures, government‐owned business groups tend to be more diversified, while ownership concentration seems to be related to lower levels of diversification. Industry membership also plays a significant role, but previous performance is not significantly related to diversification levels. Implications and future study directions are also discussed.

This study contributes to the understanding of the impact of ownership structure on companies' diversification strategies in a transitional economy such as China.

This study aims to examine how geographic diversification affects firms’ risk by introducing the franchising strategy as a moderator.

The panel regression analysis was conducted with a sample of US restaurant firms. Specifically, a two-way random (or fixed) effects model clustered by firm was used to test hypotheses.

Findings show that geographic diversification does not significantly affect restaurant firms’ risk. However, franchising aggravates the negative effect of geographic diversification on restaurant firms’ risk, which contradicts the traditional theories of franchising.

The results are expected to contribute to the diversification literature in the hospitality management by providing in-depth evidence for the effects of geographic diversification strategies on firms’ risk. Specifically, the study provides relevant theories for explaining the effect of geographic diversification in the restaurant context by examining franchising, a prominent strategy in the restaurant industry.

The results encourage restaurant firms to improve their managerial capability to react to changes in a geographically wider scope of markets and develop franchising contracts specifically to prevent misbehavior and moral hazard on the part of franchisees.

Considering the lack of research on the effect of geographic diversification on restaurant firms’ risk, this study examines not only the link between geographic diversification and firms’ risk but also a contingent factor, franchising.

This paper aims to explore the explanations of “information effect” and “agency effect” of corporate diversification with cross-industry knowledge under a crisis situation.

Based on an event study of 203 public companies’ crises in China between 2008 and 2018, the authors verify the information and agency effects of corporate diversification under a crisis situation by, respectively, examining the effects of interactions of corporate unrelated diversification with corporate transparency and knowledge deficiency attribution on the stock market’s responses to the crises.

It is found that corporate unrelated diversification serves as a buffer in protecting firm value while attribution of knowledge deficiency can be a burden. The buffering effect is stronger when the corporate transparency is higher but weaker when the crisis is attributed to be caused by corporate tacit knowledge deficiency.

Unrelated diversified firms should strengthen information communication with stakeholders so as to break down the stakeholders’ cross-industry knowledge barriers, and thus protect their own value at the crisis’ onset. Also, they can further buffer the loss by reducing stakeholders’ perceptions of the corporate tacit knowledge deficiency revealed in the crisis.

This study is the first to illustrate that the information and agency effects of corporate diversification strategy can be partially explained under a crisis situation, which provides meaningful insights about how firms can conduct knowledge management in their daily operations to deal better with corporate crises.

The aim of this paper is to investigate how e‐commerce may influence international and product diversification.

The current study elaborates the importance of resource‐based and resource dependence theory to illustrate how internal and external resources may enable firms to diversify. Prior studies on resource‐based theory, resource dependence theory, international diversification, product diversification, and IT capabilities have been presented to show gaps in the literature and identify avenues for future research.

This paper has established a theoretical perspective on the importance of external resources or infrastructure, as well as firm‐specific capabilities, on encouraging product and international diversification. A model has been developed and propositions given.

Future studies on this topic will need to empirically test the model given in this paper, in order to manage all of the interconnected variables and mediators developed in this study.

Utilization of the internet may provide a means for firms to offer “one‐stop shopping” for customers, and may even encourage firms to diversify internationally. Furthermore, important firm‐specific IT capabilities of financial services firms may be extended geographically and by product line, and combined with utilization of the internet, may improve firm performance.

This study compares and contrasts the role of internal and external resources, and assesses whether they will demonstrate a greater effect upon international or product diversification.

The purpose of this paper is to investigate whether the presence of controlling shareholder affects the value of diversification based on Indonesian listed firms. It further examines whether the degree of controlling ownership and the types of controlling ownership matter.

Panel data were used over the period 2006-2010 with dynamic generalised method-of-moments estimations and it defined diversification as industrial diversification, international diversification or diversification in both. A few different thresholds for the control rights of the largest shareholder are also set.

The results show that industrial diversification improves firm value but international diversification does not, while diversified in both strategies discounted firm value. The presence of a controlling shareholder is found to have a significant diversification discount, and the effect is nonlinear, where the entrenchment effect occurs around 20 to60 per cent threshold of controlling across all types of diversified firms. Last, foreign firms are found to enjoy more value from industrial diversification, but it takes an adverse turn when these involve both diversification strategies. Government firms do not seem to be different from family firms.

The study shows the need to differentiate diversification strategies and account for non-linearity and ownership identity in modelling diversification value. Also, the degree of shareholders’ control can be a significant channel to address the agency issue on diversification value.

Under the backdrop of unique Indonesian corporate ownership, the presence of controlling owners is shown, and their ownership affects the value of diversification. The entrenchment effect however appears only at a certain range of ownership. This is a crucial guide for the shareholders to ensure an appropriate monitoring system is installed to maximize the shareholder’s value, especially in family firms.

The value of this paper is twofold. At first, the first empirical evidence on the diversification debate with Indonesian firms for its unique institutional setting is presented. Second, the standard modelling framework to investigate the types of ownership on diversification value is extended, which has rarely been covered in previous investigations.

The purpose of this study is to investigate the relationship between unexpected financial slack and small- and medium-sized enterprises’ (SMEs) diversification and growth performance.

Using the phenomenon of IPO over-financed in China as the empirical context, the authors constructed a firm-level measure of unexpected financial slack based on over-financed capital resources and extended the nascent inquiry on unexpected slack.

The authors proposed and tested that, with unexpected slack obtained from IPO over-financed, SMEs did not engage in diversification until slack was extraordinarily high (a curvilinear relationship). And in such cases, SMEs preferred geographic diversification rather than industry diversification. Moreover, SMEs were able to sustain growth performance both in the short term and in the long term.

This study had important implications for regulators and managers. The findings of this study suggested that proper regulations on usage of over-financed capital helped SMEs’ sustain their growth performance. Regulatory policies could curb managers from cognitive biases to behave more prudently and deploy the resources more consciously. However, with sufficient resources, managers should also consider more explorative growth drivers such as diversification.

This study joined the efforts of extending the antecedents of slack formation from internal managerial behaviors to external uncertain factors. As the first study to explore the role of unexpected slack at firm level, the results of this study shed more light on the effects of unexpected slack resources.

The purpose of this paper is to study the empirical relationship between specialization, diversification and rate of survival in the digital publishing industry. The sample includes all publishing companies in Italy that produce electronic content and distribute it through internet platforms.

The first part of the paper discusses the pros and cons of specialization against diversification, and applies the related economic theories to the digital publishing industry. The empirical work regarding the factors that affect firm survival is reviewed. The second part is empirical and analyzes the diversification strategies of 2,838 Italian digital editors between 1995 and 2014, and the impact of diversification on the probability of survival.

On the whole, digital publishing companies that are also active in traditional print activities have been constantly declining. However, those who combine print and digital activities or operate other mass media businesses have a higher probability of surviving in the market. These findings hold controlling for firm size and market structure, before and after the economic crisis exploded in 2009, in different geographical areas and by different legal forms of publishing companies.

As the industry often presents country-specific characteristics, the econometric analysis should also be integrated with case studies that highlight particular survival conditions.

The study provides mass media scholars as well as practitioners with detailed information on the digital publishing trends in the medium term.

This research is significant because, in the period under review, many digital native entrepreneurs with scarce experience entered the industry, targeted digital native consumers/readers and challenged traditional and established media conglomerates.