Patent statistics: deciphering a ‘real’ versus a ‘pseudo’ proxy of innovation

Patent statistics have fascinated economists concerned about innovation for a long time. However, fundamental questions remain as to whether or not patent statistics represent the real state of innovation. As Griliches pointed out, substantial questions involve: What aspects of economic activities do patent statistics actually capture? And, what would we like them to measure? He pointed out that these statistics can be a mirage appearing to provide a great number of objective and reliable proxies for innovation.This paper aims to address some of these questions by making a comparative evaluation of the representability of patent statistics in four levels of the innovation process, using as examples research and development (R&D) in Japan's printer and photovoltaic solar cell (PV) industries over the last two decades. Furthermore, this research provides a new set of patent statistics which could be considered a more reliable proxy for innovation.     

Technological diversification and assimilation of spillover technology: Canon's scenario for sustainable growth

Under the paradigm shift from an industrial society to an information society in the 1990s, contrary to the decrease of profits in Japan's electrical machinery firms, only Canon demonstrated its increasing trend. This contrasting performance corresponds to Canon's another contrast with respect to increasing technological diversification while reverse trends in other electrical machinery firms. These contrasts suggest us that Canon's technological diversification strategy can be the source of high level of its profits.Prompted by this hypothetical view, this paper analyzes Canon's scenario for sustainable growth and attempts to elucidate its technological diversification dynamism with special attention to its contribution to high level of profits. On the basis of the identification of the correlation between technological diversification and assimilation of spillover technology, comparative empirical analyses are conducted focusing on the consequence of technological diversification and development trajectory in Japan's leading electrical machinery firms over the last two decades.     

Too Busy To Serve? An Examination of the Influence of Overboarded Directors

ABSTRACT Overboarded directors (i.e., those serving on too many boards) have come under recent attack. The accusation is that such directors are ‘stretched’ by several directorships and therefore cannot fulfil their governance responsibility. This study investigates the impact of overboarded directors upon key strategic decisions such as corporate acquisitions. Based on our examination of acquisition outcomes, we found that such directors are important sources of knowledge and enhance acquisition performance. Moreover, they represent an important complement to inside and non‐overboarded outside directors.     

Who explores further? Evidence on R&D outsourcing from the survey of research and development

Building off the resource‐based view and the knowledge‐based view, our study aims to examine determinants of firms’ R&D outsourcing, using annually‐conducted firm‐level survey data of Japanese R&D companies from 1984–2012. This survey allows us to measure strategic R&D outsourcing, isolated from those more for cost‐reducing, such as prototyping, testing and inspecting. The results corroborate the argument of complementarity in scale between internal R&D and R&D outsourcing. We also find that firms employing more doctorate holders and diversifying in knowledge spaces tend to make more use of R&D outsourcing. This study sheds light on firms’ absorptive capacity, associated both with higher‐order R&D human capital and diversified knowledge spaces, as determinants of R&D outsourcing.     

The impact of monetary and tax policy on income inequality in Japan

This paper assesses the effects of the most recent monetary policy behaviour of the Bank of Japan (in particular, zero interest rate policy and negative interest rate policy) and Japanese tax policy on income inequality in this country during the period of 2002Q1 to 2017Q3. The vector error correction model (VECM) that develops in this research shows that increase in money stock (m1) through Quantitative Easing (QE) and Quantitative and Qualitative Easing (QQE) policies of the BOJ significantly increases the income inequality. On the contrary, Japanese tax policy was effective in reducing the income inequality. Variance decomposition results show that increasing of income inequality by monetary policy is larger when comparing to decreasing effects of tax policy on income inequality. Cointegration and VECM results show that monetary policy has both short-run and long-run impacts but for tax policy paper could not find any significant short-run impact on income inequality. In addition, paper found that technological progress only in long-run can reduce the income inequality by increasing the marginal productivity of labour with positive impacts on employment and wages.     

When trading options is not the only option: The effects of single-stock futures trading on options market quality

We use the 2008 short-selling ban to examine the impact of single-stock futures (SSFs) trading on options market quality. We show that there is a substitution effect between options trading and SSFs trading during the ban period. In addition, our results show that SSFs trading had a significant effect in narrowing the bid-ask spreads of options contracts. Moreover, compared to stocks without SSFs, stocks with SSFs were less likely to violate put-call parity during the ban period. Our results suggest that SSFs trading helps mitigate the negative effect of the short-selling ban on options market quality documented in the literature.     

Institutional elasticity as a significant driver of IT functionality development

Institutions drive innovation and stimulate broad diffusion. Not surprisingly, national systems of innovation are influenced by their institutional flexibility in response to changing market conditions. As nations move from industrial to information-based societies, a key factor governing institutional “elasticity” is how institutions integrate information technology (IT). Since IT functionality is intimately connected with institutional dynamics, unlike simple manufactured products such as refrigerators, IT's specific functionality is formed through dynamic interaction with institutional systems. Consequently, institutional elasticity is a critical factor in the functionality of IT and its subsequent self-propagating behavior.This paper analyzes the mechanism of IT functionality development, with special attention to the interaction of the technology with institutional systems.     

Spatial Cournot competition and economic welfare: a note

We investigated welfare implications in location-quantity models in a symmetric linear city. We found that when firms are not agglomerated in equilibrium, increasing the distance between firms raises (reduces) producer surplus and social welfare (consumer surplus). Moreover, central agglomeration is always optimal for consumers among symmetric locations, but not necessarily for producers. Central agglomeration can be inefficient even if it is the unique equilibrium outcome. In short, the firms are more likely to agglomerate or locate closer than what welfare maximizers would dictate, whereas they locate farther apart than what consumer surplus maximizers would recommend.     

Partial Agglomeration or Dispersion in Spatial Cournot Competition

We revisit works by Pal and Matsushima, which, respectively, present different equilibrium locations. We consider nonlinear transport costs and show that Pal's result (dispersion) is more robust than Matsushima's (partial agglomeration). Pal's result holds true for any transport cost function, while Matsushima's does not hold under strong concavity or convexity of the transport cost function. If we consider sequential move of location. Pal's result holds for any transport costs. On the other hand, Matsushima's does not hold except for linear transport cost. We also discuss welfare and show that nonlinearity of the transport cost function yields rich welfare implications.     

On the existence of single-price equilibria in a matching model with divisible money and production cost

The present paper investigates Zhou's (1999) money search model, where money is divisible, agents can hold any amount of money and production of goods is costly, and presents a sufficient condition, expressed in terms of exogenously given parameters, for the existence of single-price equilibria.