R&D,free entry,and social inefficiency

We employ a three-stage game model with cost-reducing research and development (R&D) that is subject to spillovers to consider the problem of excess entry under free-entry equilibrium relative to the social optimum. Firms choose to enter or exit a market in the first stage, choose R&D in the second stage and output in the final stage. Results show that there is socially inefficient or excessive entry in equilibrium. However, we uniquely demonstrate that research spillovers hold the key to whether established results regarding socially inefficient entry hold. Specifically, excessive entry occurs as long as research spillovers are relatively small, but this is not necessarily the case with large spillovers. Some policy implications are discussed.     

R&D Strategy in International Mixed Duopoly with Research Spillovers

This paper examines the international mixed duopoly behaviour with research spillovers. Using a two‐stage game with Research and Development (R&D) and output, we investigate the effects of imperfectly appropriable R&D on optimal R&D strategies of a domestic public firm and a foreign private firm across different market interactions: (i) international R&D competition, (ii) only the foreign firm conducts R&D, (iii) only the domestic public firm conducts R&D, (iv) no firm conducts R&D, and (v) research joint venture. The results show that firms' research performances are determined by the degree of spillovers and the optimal R&D strategies involve R&D competition. Spillovers are shown to be socially beneficial and their absence can prove to be a strategic deterrent, with the public firm monopolising the market. Some of these findings contrast with the traditional models of oligopoly (with or without R&D) and mixed oligopoly (without R&D).     

Mobile Telephony,Financial Inclusion and Inclusive Growth

ABSTRACT

The paper employs the multipurpose nature of mobile telephony to investigate its welfare implications using a large sample of households in Ghana. We use seemingly unrelated probit and instrumental variable procedure to test for two related issues: First, we investigate whether mobile telephony promotes pro-poor development by helping households to efficiently allocate consumption and navigate out of poverty. Second, we analyze whether access to a broad array of financial services enhances the capacity of households to live worthwhile lives. The results show that mobile penetration and financial inclusion significantly reduce the probability of a household becoming poor and increase per capita household consumption of food and non-food items. Our results show that the welfare benefits of mobile telephony and financial inclusion are not more pronounced in female-headed households. These insights serve as useful guide for government and other stakeholders who are looking for avenues to improve livelihoods.     

Patent citations, technology diffusion, and international trade: evidence from Asian countries

In this paper, we examine international technology diffusion by using patent citations as a proxy for technology diffusion. We focus on some Asian economies, i.e., Korea, Taiwan, China and India, to investigate the relationship between technology diffusion and their trade experience with the U.S., Japan, and other G7 countries. Our empirical results reveal that trade specialization has a significant correlation with technology diffusion. Some policy implications are discussed.     

Does training benefits lead to acquisition of livelihood assets and change in social status? Evidence from training of rice farmers

Livelihood assets which are considered and recognised for their life-supporting role contribute significantly and basically to the standard of living of people. These contributions as deemed more meaningful are considered necessary to farmers whenever an opportunity exists to diversify their investment. This study looked at how the benefits from increase in farmers' rice yield contribute to farmers ability to acquire livelihood assets to enhance their standard of living. A sample size of 265 from a population of 880 farmers trained by Japan International Cooperation Agency on sustainable rainfed low-land rice production technology was used. The objective was to establish how proceeds from rice sale influenced the acquisition of livelihood assets by farmers to support their standard of living. Using spearman rho correlation, it was found that a strong positive correlation exists between increase rice output and livelihood assets acquisition. It is recommended that the technology should be disseminated nationwide specially in low-land rice farming areas so that all farmers in the country could benefit.     

Leisure motivation of people with physical and visual disabilities in Ghana

Leisure motivation is central to the provision of leisure services especially to marginalised groups such as disabled people who may have different interests from non-disabled people. Using cross-sectional data from 536 people with physical and visual disabilities, this study assessed the leisure motivations of disabled people in Ghana. The findings suggest that the motivations of people with visual and physical disabilities were fourfold, namely competence mastery, social, intellectual, and stimulus avoidance. The influence of social motivation varied across marital status and household size, while stimulus avoidance varied by type of disability, sex, and employment status. Competence mastery and intellectual motivation varied across sex and income levels. It was concluded that the leisure motivations of disabled people in this study are based on their personal circumstances; they are heterogeneous. The study recommends that research on leisure motivation should be conducted with reference to specific context and interpreted in relation to the individual’s circumstances.     

Cooperative and noncooperative R&D with spillovers: The case of labor-managed firms

This research focuses on the behavior of not-for-profit enterprises. In particular, using a familiar model of cost-reducing R&D with spillovers, we examine strategic interactions between labor-managed firms in a duopoly. Research spillovers have not been previously considered in the context of labor-managed firms. Among four market scenarios involving (i) competition in research and production; (ii) cooperation in research and production; (iii and iv) competition or cooperation in research and the reverse in production, our results show that research is greatest under full cooperation, while output is greatest under full competition. Output and R&D are the lowest in the case when firms compete in research, but form a production cartel. The degree of research spillovers has a crucial bearing upon these rankings. Some of these results differ from those for profit-maximizing firms. The effects of changes in research spillovers on employment (output) are shown to depend upon the nature of the underlying production technology. Policy implications are discussed.     

Optimal pollution control in a mixed oligopoly with research spillovers

We study optimal pollution abatement under a mixed oligopoly when firms engage in emissions‐reducing research and development (R&D) with imperfect appropriation. The regulator uses a tax to curb emissions. Results show that in a mixed oligopoly, the public firm has positive emissions reduction in equilibrium; however, emissions reductions of the private firm could be positive or zero. Under certain conditions, the optimal pollution tax is positive; otherwise, the tax reverts to a subsidy. Comparing mixed and private duopolies, privatisation leads to reductions in R&D and output, but to an increase in overall emissions, so privatisation tends to make the environment worse.     

Adoption of climate‐smart practices and its impact on farm performance and risk exposure among smallholder farmers in Ghana

Increased climate variability during the last four decades has made the agricultural environment in many developing countries more uncertain, resulting in increasing exposure to risk when producing crops. In this study, we use recent farm‐level data from Ghana to examine the drivers of individual and joint adoption of crop choice and soil and water conservation practices, and how adoption of these practices impacts on farm performance (crop revenue) and exposure to risks (skewness of crop yield). We employ a multinomial endogenous switching regression model to account for selectivity bias due to both observable and unobservable factors. The empirical results reveal that farmers’ adoption of crop choice and soil and water conservation leads to higher crop revenues and reduced riskiness in crop production, with the largest impact on crop revenues coming from joint adoption. The findings also show that education of the household head, access to extension and weather information influence the likelihood of adopting these practices. Thus, enhancing extension services and access to climate information and irrigation can reduce gaps in adoption of soil and water conservation and crop choice, considered as climate‐smart practices that will eventually improve crop revenues and reduce farmers’ exposure to climate‐related production risks.