Predation and accumulation

This article incorporates the economic theory of predation into the theory of economic growth. The analytical framework is a general-equilibrium model of the interaction between two dynasties: a potential predator and its prey. We find that the rate of accumulation of capital and the security of property are positively related only for generations of the prey dynasty that tolerate predation. Generations of the prey dynasty that choose to deter predation, even though their property is perfectly secure, accumulate productive capital more slowly than the preceding generations that tolerated predation.     

Are regional systems greening the economy? Local spillovers,green innovations and firms’ economic performances

The adoption and diffusion of environmental innovations (EIs) is crucial to greening the economy and achieving win–win environmental/economic gains. A large and increasing literature has focused on the levers underlying EIs that are external to the firm, such as stakeholder and policy pressures. Little attention, however, has been devoted to the possible role of local spillovers of a sector/geographical nature as a factor that correlates with EIs and economic performances. A rich data set that covers the innovative activities and economic performances of firms in the Emilia-Romagna region in Italy, an area dense in manufacturing districts, is analysed. EIs’ drivers and effects on firms’ performance are investigated through a two-step procedure. First, we examine the relevance of spatial levers, namely, whether high rates of eco-innovators in a given local area induce the adoption of EIs in firms located in the same local area. The role of the ‘agglomeration lever’ turns out to be fairly local in nature: we find that spillovers are significantly inducing innovation within municipal boundaries. Second, we test whether EIs adoptions have significantly increased firms’ economic performances and find that some firms’ productivity performances are positively related to EI adoption.     

Conflict diamonds

‘Conflict diamonds’ refer to the fatal role that diamonds are believed to have played in several African conflicts. The article analyzes the impact of diamond rents on economic growth in light of the broader, previously discovered empirical finding of a ‘curse of natural resources.’ By extending the theory of appropriative conflict, a predator–prey game is outlined in which a rebel chooses between peaceful production and predation on natural resources controlled by the ruler. It is shown that whereas an increase in natural resources will increase the ruler's public utility investments, it might also lead to a crowding-out of labor from the formal sector to the appropriative struggle, which depresses growth. As predicted by the model, a cross-country regression analysis suggests that diamond abundance has a negative relationship with economic growth in countries with weak institutions.     

Public investments in sustainable technology: an evaluation of North Carolina's Green Business Fund

North Carolina's Green Business Fund, a state-level sustainability–technology program, is evaluated in terms of net economic surplus. To conduct this evaluation, this paper develops and implements an economic model from which values of producer and consumer surplus can be measured. Data limitations drive modeling choices, namely the model must be applicable when the researcher is unable to decompose revenues into separate prices and quantities. The method used in this paper is an extension of one previously used to examine SBIR programs facing similar data limitations. An additional facet of the modeling method is a specification such that the presence of an existing technology can also be taken into account. This allows the evaluation to focus only on newly created surplus. The findings from this evaluation suggest that the Green Business Fund has resulted in a positive net social surplus and, when imposing an elasticity of demand drawn from the literature on other sustainability-based technologies, a benefit-to-cost ratio of above 2.     

Predator–prey dynamics in general equilibrium and the role of trade

We examine the implications of trade in an economy with two interrelated natural resources, focusing on the case of a simple predator–prey relationship. We derive a three-sector general equilibrium model where production functions are linked via the ecological dynamics of the natural system. Under autarky, this economy exhibits a steady-state equilibrium that overexploits the prey stock, reducing the linked predator population and overall welfare in the absence of harvesting controls. When two economies engage in trade, differences in the dynamics of the two resource systems can become the basis for comparative advantage. In this case, the predator–prey relationship leads to a source of comparative advantage in harvesting prey for a country with a lower autarky steady-state proportion of predators to prey. This feature has not been noticed in the literature and leads to a counterintuitive implication: free trade can help conserve predator and prey stocks in the country with the higher autarkic steady-state proportion of predators to prey. To illustrate the relevance of our analytic findings, we present the stylized empirical example of the effect of Chinook salmon imports on killer whale populations.     

Uncertainty,informational spillovers and policy reform: A gravity model approach

Reforms often occur in waves, seemingly cascading from country to country. We argue that such reform waves can be driven by informational spillovers: uncertainty about the outcome of reform is reduced by learning from the experience of similar countries. We motivate this hypothesis with a simple theoretical model of informational spillovers and learning, and then test it empirically using an approach inspired by the gravity model. We find evidence of informational spillovers both with respect to both political and economic liberalization. While the previous literature has focused only on economic reform, we find that the spillovers are particularly important for political changes.     

Threshold effect of international technology spillovers on China's regional economic growth

ABSTRACT

This study uses China's provincial panel data for 2003–2016 to estimate the turning point of technology spillovers promoting economic growth in the coastal and inland areas. The results show that the turning point in coastal areas is significantly higher than that in inland areas. However, improved absorptive capacity as a result of regional disparity increases the threshold of technology spillovers from promotion to suppression in inland areas but decreases it in coastal areas. Then, this study further tests the threshold characteristics of absorptive capacity factors influencing international technology spillovers using a double-threshold regression model and estimates the threshold values of both forward and reverse spillovers from the viewpoint of knowledge context, economic development, opening degree and human resources infrastructure. In conclusion, the effect of absorptive capacity factors on international spillovers is nonlinear, that is, when absorptive capacity factors are between the two threshold values, technology spillovers are maximised.     

The high/low divide: Self-selection by values in auction choice

Most prior theoretical and experimental work involving auction choice has assumed bidders find out their value after making a choice of which auction to enter. We examine whether or not bidders knowing their value prior to making a choice of which among multiple alternative auction formats to enter impacts their choice decision and/or the outcome of the auctions. The results show a strong impact on auction choice. Subjects with low values choose the first price sealed bid auction more often while subjects with high values choose the ascending auction more often. The number of bidders in each auction, revenue, efficiency and average bidder surplus all end up equalized.     

The economic costs of biological predation

This paper developes a bioeconomic model to analyse the economic losses from the reduced harvesting of prey species resulting from an increase in the stock of a natural predator. Examples of large mammals creating economic damage are whales and African elephants. The economic losses depend critically on the actual management of the prey stock, although the three measures we develop are equal when the stock is managed so as to maximize the sustained economic rent from the prey species. Predation losses are illustrated by the case of the Northeastern Atlantic Minke whale, where the estimate of the average predation cost per whale in 1991–1992 is between $US 1780 and $US 2370, using Norwegian cost and earnings data. A ten percent stock increase is estimated to cause a loss of almost $US 19 million to the fishers of the prey species. If half of this cost were assigned to Norway it would be equivalent to 2.8 and 6.7 percent of the gross profits of the Norwegian cod and herring fisheries, respectively.     

Ecological Transfers in Non-Human Communities Parallel Economic Markets in a General Equilibrium Ecosystem Model

Synopsis: The oft-cited analogies between ecological and economic systems are exploited to develop a many-species model of population dynamics. In economies, markets are the fundamental institutions in which the interaction of demands and supplies determine the quantities and prices of goods. However, economic markets are not appropriate for ecological communities, because markets rely on voluntary exchange, whereas plants and animals engage in involuntary transfers of biomass. A properly defined counterpart to markets based on biomass transfers permits a general equilibrium model of predator/prey and competitive interactions in a many-species community. Functional response from optimal foraging and predation risk provide the demand and supply, respectively, in the biomass transfers. Energy per unit time is scarce and predators and prey make optimum choices with respect to functional response and risk avoidance based on required energy expenditures. The energy expenditures are similar to economic prices: they determine foraging strategies and are beyond the control of the predators and prey, yet they are determined by the aggregate choices of all predators and prey and by population densities. The energies acquired from foraging are used in a new way to construct difference equations that determine the population dynamics. This revised version was published online in July 2006 with corrections to the Cover Date.     

Externalities,entry bias,and optimal subsidy policy for cleaner environment

This paper analyses alternative subsidy schemes and long-run entry bias in a new industry that creates positive environmental externalities (both generation externalities and externalities associated with interindustry technology spillovers). It demonstrates that per-unit subsidy scheme, despite attracting fewer firms, results in higher industry output and economic surplus in the equilibrium compared with the expenditure equivalent lump-sum subsidy scheme. However, the later leads to higher total surplus, unless spillover externalities are sufficiently small. Further, the free-entry equilibrium number of firms may be excessive or insufficient. A key finding of this paper is that the first-best equilibrium outcome can be implemented through a unique combination of per-unit subsidy and lump-sum subsidy/tax, which involves positive government expenditure in the presence of positive externalities.     

Export Spillovers of FDI on China's Domestic Firms

This paper examines the horizontal and vertical export spillovers of foreign direct investment (FDI) on China's manufacturing domestic firms by using firm‐level census data over the period of 2000–03. Based on a Heckman two‐step procedure combining first differencing and instrumental variable regression techniques, it is found that FDI has had a positive impact on the export value of domestic firms mainly through backward technology spillovers and a positive impact on the export‐to‐sales ratio of domestic firms through horizontal export‐related information spillovers. After decomposing FDI by different market orientation and domestic firms by different ownership, the paper finds that the positive impact on domestic firms' export values is mainly from the nonexporting and the exporting foreign‐invested enterprises while the positive impact on domestic firms' export‐to‐sales ratios is mainly from the high‐exporting foreign‐invested enterprises. Both types of export spillovers are mainly diffused to domestic non‐state‐owned enterprises.     

Deriving values for the ecological support function of wildlife: An indirect valuation approach

We describe a method that combines economic willingness-to-pay estimates for higher trophic-level species with basic information available about ecosystem relationships to derive estimates of partial willingness-to-pay for lower level species that might be of direct policy interest. This method is intended as a quasi-benefit transfer method for use in benefit–cost analysis. Our method makes it possible to establish partial willingness-to-pay estimates for the large number of species of immediate or potential policy interest using only data available in non-market valuation and biology and ecology literature. We provide a partial estimation of indirect values for the predator–prey relationships that support golden eagles in the Snake River Bird of Prey area as an example of how to operationalize our approach.     

Pollution Regulation and the Efficiency Gains from Technological Innovation

Previous studies suggest a preference for emissions taxes over (non-auctioned) emissions permits and performance standards based on their potential for promoting technological innovation. We present simulation results that cast some doubt on the empirical importance of this assertion: the welfare gain induced by an emissions tax is significantly larger than that induced by other policies only in the case of very major innovations. We also find that the presence of technology spillovers per se does not necessarily imply large inefficiencies. Thus, despite spillovers, the welfare gain from additional policies to promote innovation (such as R&D subsidies) may be limited.     

ChinHow R&D Investments Influence TFP Growth: Evidence from China’s Large and Medium- Sized Industrial Enterprises

This paper investigates the potential channels through which R&D may influence TFP growth using industry-level panel data of China’s large and medium-sized industrial enterprises over the period of 2000–2007. Comparing with existing literature, we provide a closer look of the relationship between R&D and TFP growth by decomposing TFP growth into efficiency change and technical change components using Malmquist productivity index and distinguishing between upstream R&D spillovers and downstream R&D spillovers. We find TFP grow slightly during 2000–2007, and R&D investment indeed serves as an engine of productivity growth just as endogenous growth theories argued, which is largely because R&D accelerates technical progress even it also results in enlarging technical inefficiency. However, we find a robust negative effect of downstream R&D spillovers on TFP growth, the effects of upstream is positive but not statistically significant. In addition, we do not find the positive effects of human capital on TFP as endogenous growth theories indicated, but find human capital severs as “assimilation device” for R&D spillovers both in promoting TFP growth and increasing technical efficiency even the effects on technical progress is adverse.     

The welfare impact of policy interventions in the foodgrain markets in Bangladesh

The paper attempts to estimate the welfare impact of different policy interventions in the foodgrain markets in Bangladesh using an economic surplus approach. Over the period of analysis, 1980–2003, the loss in consumer surplus exceeded the gain in producer surplus plus the gain in government revenue. Therefore, the interventions resulted in a deadweight welfare loss for society. In contrast, in the policy of liberalization, the gain in consumer surplus and in government revenue is larger than the loss in producer surplus, producing a net welfare gain to society.     

Firms’ productivity growth and R&D spillovers: An analysis of alternative technological proximity measures

This paper aim at assessing the impact of R&D spillovers on firms’ economic performance as measured by productivity growth. The construction of R&D spillovers is based on Jaffe's methodology (1988, 1996) which associates econometrics and data analysis. The main objective of the paper is to extend Jaffe's methodology by examining alternative methods for measuring R&D spillovers and to test their impacts in terms of the robustness of results. In particular, the method used to classify firms into technological clusters as well as the metrics implemented to appreciate firms’ technological proximities which enter the construction of spillovers are further investigated. In addition to R&D spillovers, firms’ own R&D capital, labour and physical capital are estimated by means of a Cobb–Douglas production function. The data set consists of a representative sample of 625 worldwide R&D intensive firms over the period 1987–1994.     

The role of spillovers in research and development expenditure in Australian industries

Using administrative data from firms in Australia that conduct research and development (R&;D), we examine how R&;D activity of other firms and public institutions affect a firm's own R&;D expenditure. We distinguish between the impact of peers, suppliers and clients. We examine whether geographical proximity and industrial clustering affect R&;D spillovers. Overall, we detect positive effects on R&;D expenditure from spillovers from peers and clients to firms that are nearby; within 25 or 50?km. R&;D expenditure by academia, unlike by government bodies, has a positive influence on a firm's own R&;D expenditure within state boundaries. We fail to find any significant role for industrial clusters in augmenting spillover effects.     

Downside business confidence spillovers in Europe: evidence from causality-in-risk tests

This paper employs an extreme risk spillovers test to investigate the bilateral business confidence spillovers between Greece, Italy, Spain, Portugal, France, and Germany. After controlling for domestic economic developments in each country and common international factors, downside risk spillovers are detected as a causal feedback between Spain and Portugal and unilaterally from Spain to Italy. Extremely low business sentiments in France, Germany, and Greece are mostly due to the common adverse economic environment and to each country’s own domestic economic developments.     

International business cycle spillovers since the 1870s

This article considers the evolution of international business cycle interdependencies among 27 developed and developing countries since the beginning of 1870s, utilizing the generalized vector autoregressive (VAR)-based spillover index of Diebold and Yilmaz (2012), which allows the construction of a time-varying measure of business cycle spillovers. We find that, on average, 65% of the forecast error variance of the 27 countries’ business cycle shocks is due to international spillovers. However, the magnitude of international business cycle spillovers varies considerably over time. There is a clear increasing trend since the end of World War II and until the mid-1980s. After that, international business cycle interdependencies declined during the period that was dubbed the Great Moderation and stabilized around the beginning of the twenty-first century. During the Great Recession of 2008–2009, international business cycle spillovers increased to unprecedented levels. Finally, developed countries are consistently ranked as net transmitters of cyclical shocks to developing counties throughout the sample.