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After the 2008 global financial crisis, the world has been through an improving economic integration. The scale of RMB cross-border transaction flows expands as well. Countries around China are gradually accepting the RMB as a means of trading and investing. Nowadays, the phenomenon of RMB substitutes the currencies of neighboring countries has become more and more widespread. As a frontier region for China's opening up to the outside world, Hong Kong's financial market is highly transparent with perfect infrastructures. The completion of the Hong Kong offshore RMB market leads to a rise of the RMB stock in Hong Kong, so there is a clear phenomenon of RMB substituting Hong Kong dollars (HKDs) in Hong Kong. This paper studies the substitution effect of RMB and HKD from both theoretical and empirical aspects, and puts forward policy recommendations based on the research results.

The purpose of this original research is to explore whether firms redeploy the resources that were withdrawn from existing businesses and use them to enter an emerging product market. We studied 244 firms that have exited from at least one business and analyzed whether the firms entered the emerging product market as a new business. The inducements of resource redeployment vary with information cues in media rhetoric about emerging and shifting threats of substitution between the firm’s existing businesses and the new one. Through our hazard rate analysis of entries of firms that exited existing businesses, we examined the hypotheses that resource redeployment through exit and entry may be driven by an interaction of the volume of substitution rhetoric with the resource commitments that the firm had made in the domain of the new business as well as the market relatedness between the firm’s existing businesses and the new one. Our study makes conceptual and methodological contributions to the research on inducements, by theorizing how performance advantages of new over existing businesses vary with product evolution and by characterizing emerging and shifting threats of substitution with content analysis of media rhetoric. Our study suggests that prior work investigating corporate diversification provides an incomplete picture of the contribution of resource relatedness to firm value and firm decision-making.

The development of digital inclusive finance (DIF) has increased households' financial investments and consumption. However, few studies have considered whether DIF strengthens the substitution of household financial investment for consumption behavior. To clarify the relationship between DIF, household financial investment and household consumption behavior, the authors combine matched data from the China Family Panel Studies (CFPS) and Peking University Digital Inclusive Finance Index (2011–2018) to explore the impact of DIF on household financial substitution. This study aims to discuss the aforementioned objectives.

This study's empirical analysis applies ordinary least squares (OLS) to answer how DIF affects household financial investment substitution for consumption. This study uses three approaches to examine the robustness of the benchmark regression model. These three approaches are replacing the core explanatory variables, using the lagged Digital Inclusive Finance Index and using the data of additional years. This article also assesses endogeneity by applying the instrumental variable method.

The results indicate that DIF significantly enhances household financial substitution. This article also assesses endogeneity by applying the instrumental variable method and robustness test methods. The impact mechanism test shows that DIF positively affects household financial substitution, by improving information dissemination efficiency and enhancing financial participation. Further research finds that the impact of DIF on household financial substitution is more pronounced in households with low to moderate savings rates, low to average income households and homes without family members who start their businesses.

This study analyzed the effect and mediating mechanisms of digital financial inclusion on household financial substitution. Like all studies, the research had some limitations. First, due to differences in culture and infrastructure development, people do not understand and judge economic behaviors, such as household financial investment and consumption, in the same way. It can lead to certain biases in their understanding and study responses. Second, the study is mainly based on data from China. Future studies should be extended to foreign countries for comparative analysis. Third, the development of DIF has not yet completed a full cycle, and many problems have not been fully identified.

This study provides some practical implication. First, the public sectors should effectively weigh the spending relationship between household financial investment and consumption. Second, the public sector should focus on the policy optimization and consistency of DIF. The public sector should both enhance the breadth of coverage and depth of impact of DIF and focus on long-tail groups to fully reflect the equity and inclusiveness of DIF.

This study responds to the discussion on the relationship between financial investment, saving and consumption games in household expenditures and enhances our understanding of how DIF affects households' complex economic behavior. The most revealing finding is that DIF reinforces the substitution of household financial investment for household consumption. DIF positively affects household financial substitution by improving the efficiency of information dissemination and increasing financial participation, which is a valid extension of the study on the mechanisms of information dissemination and financial participation in financial investment and consumption proposed.

This paper focuses on multi-objective order allocation with product substitution for the vaccine supply chain under uncertainty.

The weighted-sum minimization approach is used to find a compromised solution between three objectives of minimizing inefficiently vaccinated people, postponed vaccinations, and purchasing costs. A mixed-integer formulation with substitution quantities is proposed, subject to capacity and demand constraints. The substitution ratios between vaccines are assumed to be exogenous. Besides, uncertainty in supplier reliability is formulated using optimistic, most likely, and pessimistic scenarios in the proposed optimization model.

Covid-19 vaccine supply chain process is studied for one government and three vaccine suppliers as an illustrative example. The results provide essential insights for the governments to have proper vaccine allocation and support governments to manage the Covid-19 pandemic.

This paper considers the minimization of postponement in vaccination plans and inefficient vaccination and purchasing costs for order allocation among different vaccine types. To the best of the authors’ knowledge, there is no study in the literature on order allocation of vaccine types with substitution. The analytical hierarchy process structure of the Covid-19 pandemic also contributes to the literature.

This paper aims to investigate the presence of currency substitution in eight African countries.

This study investigates the presence of currency substitution in eight African countries – Egypt, Morocco, Nigeria, Ghana, Kenya, South Africa, Tunisia and Zambia – for the period 1976 to 2005 using both regional and US dollar as anchor currencies.

The paper finds that currency substitution is prevalent in Ghana and Nigeria when CFA franc is used as an anchor currency. However, when US dollar is used as an anchor currency there is no evidence of currency substitution in Ghana, but the presence of currency substitution in Nigeria is still observed. The paper also finds the presence of currency substitution in South Africa, but not in Egypt when the US dollar is the anchor currency. For Kenya, Tunisia and Zambia there is no evidence of currency substitution irrespective of the anchor currencies considered. In the case of Morocco, no evidence of currency substitution is observed when the Egyptian pound is used as anchor currency, but there is weak evidence of currency substitution when the US dollar is considered.

This paper provides useful information on the presence of currency substitution in African countries.

Some marketers have challenged psychologists’ contention that human beings can only learn by using conscious effort. They argue that advertising can be effective at low levels of (or even no) attention. Also, despite the absence of (or low levels of) consciousness, these subconscious responses can be linked to brands. The purpose of this study is to investigate the impact of implicit learning in the context of logo substitution – an image that may not look like the original logo, and may not even be consciously associated with the original brand or its logo.

Data were collected by means of two quasi-experimental studies.

The results suggest that, thanks to implicit learning, logo substitution can be effective.

One limitation was that data were collected from two relatively small convenience samples.

Logo substitution can be of value when a company faces a situation when advertising is banned or restricted, when the target market is saturated with marketing stimuli (clutter) and when there is a risk that aggressive advertising can lead to psychological reactance. The purpose of logo substitution would then be to unobtrusively activate mental representations closely related to the original logo.

The central contribution of this study is that it demonstrates how the principles of implicit social cognition, implicit learning and logo substitution can be used by marketers to overcome the undesirable and even adverse advertising circumstances they sometimes face.

This paper aims to develop a bi-objective mixed integer non-linear programing model to optimize the supply chain networks consisting of raw material providers, final product manufacturers and distribution centers. Raw material substitution caused by varying raw material supply amounts, prices and carbon emissions and final product substitution due to different product prices and carbon emissions are considered.

The proposed model aims to achieve total profit maximization and total carbon emission minimization. The objective function of carbon emissions is converted into a maximization problem by changing minimum to maximum. The composite objective function is the weighted sum of the bias value of each objective function. The model is then solved using software Lingo12.

Numerical analysis results show that an increase in the number of alternate raw materials for original raw material helps improve supply chain network performance, and variation in that number causes detectable but not significant changes in downstream final product substitution results.

The major differences between this work and existing research are as follows: first, although previous research considered carbon emissions in supply chain network optimization, it has not considered the substitution effects of products or raw materials. This paper considers the substitution of both raw material and productions. Second, the item substitution considered by previous research is derived from inventory shortage or price difference of original items. However, the substitution considered in the present paper is a response to differences in purchase price, production cost and carbon emissions for items.

This paper aims to examine whether the substitution of employee stock options (ESOs) for debt occurs for firms with different tax status classifications throughout the conditional distribution of interest expense before and after the implementation of Statement of Financial Accounting Standard 123R (SFAS 123R).

This study uses Censored Quantile Regression (CQR) to assess whether the substitution effect is dependent on firms' position in the conditional distribution of interest expense. Our sample firms are categorized into two groups: one group (tax‐sensitive) that is sensitive to additional deductions due to a moderate income level and the other group (tax‐insatiable) that is not sensitive because of very high income level.

The substitution effect is not present for firms with below medium level of interest expense. Only tax‐sensitive firms substitute at medium levels of interest expense while both tax‐sensitive and tax‐insatiable firms substitute at high levels of interest expense. Tax‐insatiable firms with very high levels of interest expense also substitute; however, tax‐sensitive firms with very high levels of interest expense only substitute after SFAS 123R required firms to report ESO expense in financial statements. We attribute the substitution patterns revealed by the CQR analysis to a positive relationship between interest expense and cost of debt.

To the authors' knowledge, this is the first paper to analyze firms' tax status classification impact on the substitution of ESO expense for interest expense across different levels of interest expense. Our application of CQR should benefit researchers who are interested in examining explanatory variables' impact at various points in the conditional distribution of the dependent variable. This study also refines the conjecture that ESOs are substitutes for debt by demonstrating that such relationship is dependent on the level of interest expense and tax status. Furthermore, the finding of firms substituting ESOs for debt provides accounting standard setters a reason to begin requiring firms to re‐measure the value of ESOs after the grant date until the exercise date.

The objective of this study was to examine practices and policies in place for the provision of substitution treatment in prison in 18 European countries. Methodology. Across the 15 European member states (prior to 1 May 2004) and Czech Republic, Poland and Slovenia, interviews with ministerial representatives, professionals (i.e. service providers and security officials) working in prisons, and a total of 33 focus groups with a total of 132 male and 52 female prisoners were conducted. Results. Although constraints of access to substitution treatment for specific target groups only (e.g. HIV‐positive opiate users) have largely vanished, substitution treatment is now offered to a broad cross‐section of prisoners. The provision of this treatment still lags behind the standards of substitution treatment in the community (regarding access and continuity). In most countries, this form of therapy is most likely to be discontinued when entering prison. A treatment gap persists between prisoners requiring substitution maintenance treatment and those receiving it. Heterogeneous and inconsistent regulations and treatment modalities appear throughout Europe, sometimes within the same country or region. The concrete provision practice of substitution treatment in prison varies from one country to the other, from one prison to the other, within a medical team, and even from one doctor to another. Although psychosocial care was seen as a valuable additional and necessary part of the treatment to support the medical part of the substitution treatment in prison, it was found that such support was rarely provided. Compared to previous research, this study illustrates that the scope of substitution treatment has extended considerably across Europe. Across the board, a consensus surrounding the need to continue substitution treatment that had already been started in the community was apparent.

Despite the prevalence with which firms change the brand names they use, this research stream has received little academic attention. Managers confronted with brand name substitutions fear most a loss of brand equity, which would decrease their market share. This research aims to identify key influences that might enable companies to minimise their brand equity losses in response to brand name substitutions.

A preliminary qualitative investigation (20 semi‐directive interviews) pertained to better understand how brand equity loss might be minimised in the case of a brand name substitution. This qualitative research and a relevant literature review provided input for the questionnaire design. Furthermore, the resulting survey data from a sample of 300 consumers served for the test of the research propositions.

This study identifies five key influence factors that marketing managers can use to transfer brand equity in the case of brand name substitution, based on consumers' knowledge of the brand change, attitude toward brand change, perceived similarity between the old and new brands, degree of attachment to the initial brand, and recognition of the presence of an umbrella brand. Finally, the brand equity dimensions are interrelated, such that the transfer of perceived quality and brand image influences loyalty transfer, and brand quality transfer improves brand image transfer.

This research represents a first attempt to answer the pressing question: how can firms transfer brand equity successfully in the case of brand name substitution? The study also identifies for the first time key influence factors that favour brand equity transfer from an old to a new brand.