Study on the evaluation system for the cleaner production of the mine

It is important to establish the evaluation system of the cleaner production of the mining enterprise, which canprovide the technical support and guidance for the cleaner production evaluation and facilitating the promotion ofcleaner productive techniques so as to realize the integration of economic development and environmental protection.This paper, according to the characteristic of mining and Analytic Hierarchy Process （AHP）, establishes the evaluationindex system, puts forward the overall quantitative evaluation method based on Fuzzy Mathematics and the experts’experience, and establishes the evaluation system of cleaner production. The main problems in cleaner production of themine are analyzed by calculation, and some countermeasures and suggestions are proposed.     

How different are the production functions of the European manufacturing sectors? New empirical evidence

The neo-classical model of international trade assumes that the Total Factor Productivity (TFP) of a sector is common across countries, that returns to scale are constant and that the sectoral production of the countries differs by virtue of the factor endowments. In this article, we consider whether the differences in production can also be explained by the economies of scale in the national industries and by the technological differences across countries. To test this hypothesis, we estimate three models proposed in Harrigan (1999 Harrigan, J. 1999. Estimation of cross-country differences in industry production functions. Journal of International Economics, 47: 267–93.  [Google Scholar]) with data for eight European Union (EU) Member States covering the period 1978 to 1992 and analyse how the TFP changes from country to country.     

The time structure of production in the US, 2002–2009

The US time structure of production during the 2002 through 2009 business cycle is characterized empirically using industry-level input-output data. An industry’s total industry output requirement (TIOR) is proposed as a metric for “roundaboutness”. I find that the time structure of production lengthened following the Federal Reserve’s 2002 expansionary deviation from the Taylor rule and then contracted during the Great Recession. Value added growth in the most-roundabout of US industries accelerated relative to that of the least-roundabout industries. Heading into the Great Recession, value-added growth in the most-roundabout industries contracted early and turned negative in 2007 while value-added growth in the least-roundabout industries remained positive until 2009. The stylized facts of the time structure of production are consistent with Austrian Business Cycle Theory.     

Assessment of natural resources and the policy of subsidies in grain production

Based on the analysis on the status quo of natural resources input in Brain production and on the policy of Brain subsidies, this paper puts forward a new idea - establishing grain subsidies through assessing the value of the natural resources in Brain production. The assessment of the natural resources in Brain production provides rationale and reference standard for the policy of Brain subsidies, which will promote the sustainable use of natural resources accordingly. This paper concludes： （1） it is necessary for the grain subsidies to assess the full value of natural resources, including economic value, ecological value and social value： （2） the government should give farmers direct subsidies or environment subsidies according to the economic and ecological value of natural resources in grain production, （3） the social value of natural resources can be realized by establishing the country social security system, taking the social value as the criterion for the payment for part of farmers＇ insurance.     

The Hotelling Principle,backwardation of futures prices and the values of developed petroleum reserves — the production constraint hypothesis

We explore the practitioner-stylized facts that petroleum wells require large initial investments, have daily production capacities, and have small marginal costs for production rates meaningfully below these capacities. Long-run backwardation of futures prices is required to induce drilling new wells. In contrast to Miller and Upton (1985a,b) and Litzenberger and Rabinowitz (1995), production from developed reserves is essentially a corner solution at capacity regardless of backwardation or price volatility. Economically interesting supply decisions take the form of investment in exploration and drilling. Empirical evidence strongly rejects the Miller and Upton hypothesis in favor of our more general model.     

Predicting the competitive relationships of industrial production between Taiwan and China using Lotka–Volterra model

This work is the first to apply Lotka–Volterra model combined with genetic algorithm (GA) to predict the production relationships of high-tech industry among different areas. Previous studies analysed the trade interdependency among various countries, but few studies have highlighted the quantitative evidence of production relationships. Thus, this study utilizes motherboard shipment volumes to predict the competitive relationships of industrial production on both sides of the Taiwan Strait. Specifically, this work uses simultaneous non-linear least square regression in combination with GAs for numerical parameter optimization of the proposed Lotka–Volterra model. The results of parameter estimation reveal that shipment growth in China substantially promotes that in Taiwan, whereas the shipment growth in Taiwan curtails that in China. The standard deviation of the estimated parameters from the 3000 iterated simulations is small, confirming the reliability and stability of our parameter estimations. According to equilibrium analysis, the results of Lyapunov function prove that the shipments of China and Taiwan will reach a stable long-term equilibrium. The potential production from China will ultimately be nearly 16 times as large as that from Taiwan. Finally, the analytical results of forecast accuracy confirm that Lotka–Volterra model performs better than conventional S-curve diffusion model in predicting motherboard shipments.     

Biofuel policies and the environment: Do climate benefits warrant increased production from biofuel feedstocks?

We examine whether climate benefits warrant policies promoting biofuel production from agricultural crops when other environmental impacts are accounted for. We develop a general economic-ecological modelling framework for integrated analysis of biofuel policies. An economic model of farmers' decision making is combined with a biophysical model predicting the effects of farming practices on crop yields and relevant environmental impacts. They include GHG emissions over the life cycle, nitrogen and phosphorus runoff, and the quality of wildlife habitats. We apply our model to crop production in Finland. We find that under current biofuel production technology the case for promotion of biofuels is not as evident as has been generally thought. Only reed canary grass for biodiesel is unambiguously desirable, whereas biodiesel from rape seed and ethanol production from wheat and barley cause in most cases negative net impacts on the environment. Suggested policies in the US and the EU tend to improve slightly the environmental performance of biofuel production.     

Are overtime plants more efficient than standard-time plants? A stochastic production frontier analysis using the IAB Establishment Panel

Using data from the IAB Establishment Panel, 1995–2000, we investigate between-plant variations in productivity. The study compares technical efficiencies between plants which work overtime (overtime plants) and plants which do not work overtime (standard-time plants), where technical efficiency measures the gap between feasible output and actual output for a given input combination. A fixed effects approach is applied, which does neither rely on any distributional assumptions of the inefficiencies, nor on the independence between the regressors and inefficiencies. For both, models with time-invariant and time-varying inefficiencies, we do not find evidence that the two plant-types differ in their technical efficiency.First version received: May 2002 / Final version received: August 2004The comments by Martyn Andrews and Bob Hart are gratefully acknowledged. The article has also benefited from the comments of two anonymous referees.     

What is wrong with aggregate production functions. On Temple’s ‘aggregate production functions and growth economics’

In an article in the 2006 volume of this journal, Jonathan Temple presented a defence of the use of the aggregate production function in growth theory in the light of various criticisms that have been levelled at it. These criticisms include the Cambridge Capital Theory Controversies, various aggregation problems, and the problems posed by the use of value data and the underlying accounting identity. We show that Temple has underestimated the seriousness of these criticisms, especially the last one, which vitiates the concept of the aggregate production function. Because of the identity, estimates of putative aggregate production functions, such as the aggregate elasticity of substitution, cannot be interpreted as reflecting the underlying technology, and hence the use of the aggregate production function is extremely problematical.     

An experimental analysis of team production in networks

Experimental and empirical evidence highlights the role of networks on social outcomes. This paper tests the properties of exogenously fixed networks in team production. Subjects make the same decisions in a team work environment under four different organizational networks: the line, the circle, the star, and the complete network. In all the networks, links make information available to neighbors. This design allows us to analyze decisions across networks and a variety of subject types in a standard linear team production game. Contribution levels differ significantly across networks and the star is the most efficient incomplete network. Moreover, our results suggest that subjects act as conditional cooperators with respect to the information received from the network.     

Trends in compensation for production workers: 1948–1995

Between 1977 and 1995, real after-tax hourly compensation for production workers fell by almost 14 percent. Both real pre-tax wages and the real value of benefits fell over this period. These estimates were generated using a cost-of-living index that was adjusted for a wide range of upward and downward biases     

Do production subsidies have a wage incidence in wind power?

Employment in electricity generation from renewable resources has expanded rapidly in the US and in Texas during the last decade. Availability of the Production Tax Credit (PTC) has been an important driver of this growth. Using establishment-level employment and payroll data for Texas at the North American Industrial Classification System (NAICS)-6 level, we analyse the differences in average wages between firms generating electricity from fossil fuels and those generating electricity from wind power. We compare relative average wages before and after the rapid expansion of wind power development that followed the ex ante renewal of the PTC in 2006. Our main finding using both the parametric and nonparametric estimation techniques proposed by Racine and Li (2004), is that average payrolls for wind power generators increased relative to fossil fuel-based electricity generators after 2006.     

Domestic R&D and offshoring: does offshoring reduce knowledge production?

An important question in industrialized countries is whether offshoring activities reduce the probability of performing own research and development (R&D) or whether the R&D intensity falls in firms that already have R&D activities. This question is addressed using a unique data set that combines survey and register data. No evidence is found for a lower probability of own R&D after offshoring takes place compared to before. Moreover, offshoring does not lead to lower R&D intensity in general. However, firms that offshore R&D activity have larger R&D intensity after offshoring has taken place, which suggests that R&D performed at home is complementary to foreign R&D.     

Asset pricing in a production economy with Chew–Dekel preferences

In this paper we provide a thorough characterization of the asset returns implied by a simple general equilibrium production economy with Chew–Dekel risk preferences and convex capital adjustment costs. When households display levels of disappointment aversion consistent with the experimental evidence, a version of the model parameterized to match the volatility of output and consumption growth generates unconditional expected asset returns and price of risk in line with the historical data. For the model with Epstein–Zin preferences to generate similar statistics, the relative risk aversion coefficient needs to be about 55, two orders of magnitude higher than the available estimates. We argue that this is not surprising, given the limited risk imposed on agents by a reasonably calibrated stochastic growth model.     

Can diaries help in improving agricultural production statistics? Evidence from Uganda

Although good and timely information on agricultural production is critical for policy-decisions, the quality of underlying data is often low and improving data quality could have high payoff. We use data from a production diary, administered concurrently with a standard household survey in Uganda to analyze the nature and incidence of responses, the magnitude of differences in reported outcomes, and factors that systematically affect these. Despite limited central supervision, diaries elicited a strong response, complemented standard surveys in a number of respects and were less affected by problems of respondent fatigue than expected. The diary-based estimates of output value consistently exceed that from the recall-based production survey, in line with reported disposition. Implications for policy and practical administration of surveys are drawn out.     

On the Relation between the Demand Environment and the Innovation

The demand environment has a great influence on innovations and the formation of the motive force of the innovation. The demand causes the desire： the desire forms the motive force; the motive force inspires the innovative thinking. the innovative thinking becomes the innovative practice; and the innovative practice.finally, meets people＇s demand.     

Firm size,credit scoring accuracy and banks’ production of soft information

Research on SME bank financing generally assumes that smaller firms are more opaque from a lender’s perspective. We propose that the discriminatory power of credit scoring models can be thought of as a proxy for firm opaqueness, given that when these models perform poorly, lenders must invest in the production of ‘soft information’ to supplement the financial data used in these models. Measuring the discriminatory power of probit default models across quintiles of the Irish SME size distribution, we show that our proxy for firm opaqueness increases monotonically as firms get smaller. This finding supports an assumption that is the starting point to a wide strand of literature on SME bank financing. Our findings can also be interpreted as providing an insight to the literature on the determinants of banks’ choice of lending technology. While smaller banks may, as found in a substantial previous literature, produce larger amounts of ‘soft information’ due to their organizational advantages, they may also do so out of necessity: hard-information-based default modelling is less effective among smaller firms, thereby forcing banks that lend to these borrowers to invest more in relationship banking technologies to retain competitiveness.     

Why do some firms contract out production? Evidence from firm-level panel data

This paper examines the determinants of self-employment and transitions from salaried employment to self-employment using two sets of Finnish data from the 1990s. The results show that capital constraints have only a minor effect on new business starts. Human capital, in the form of intergenerational links in self-employment and psychological factors play a much larger role. The paper also provides empirical evidence that less risk-averse workers are more likely to become entrepreneurs.     

Did the AFL equalization policy achieve the evenness of the league?

In this article, we investigate whether the Australian Football League intervention policies coincided with a more even-playing field in the league, as captured by individual match margins. We find that only two out of the eight major policies implemented over the last hundred years are correlated with lower margin.     

Will the skill-premium in the Netherlands rise in the next decades?

While the skill-premium has been rising sharply in the US and the UK for 20 years, the Dutch skill-premium decreased for much of that period and only started to rise in the early 90s. In this article, we investigate whether the Dutch skill-premium will rise in the next decades. To answer this question, we forecast the skill-premium using the Katz and Murphy (1992 Katz, L and Murphy, K. 1992. Changes in relative wages, 1963–1987: supply and demand factors. Quarterly Journal of Economics, 107: 35–78. [Crossref], [Web of Science ®] , [Google Scholar]) and the Krusell et al. (2000 Krusell, P, Ohanian, L, Ríos-Rull, J-V and Violante, G. 2000. Capital-skill complementarity and inequality: a macroeconomic analysis. Econometrica, 68: 1029–53. [Crossref], [Web of Science ®] , [Google Scholar]) models. The Katz and Murphy model (KM) explains demand shifts by skill-biased technological change in unobservable variables captured by a time trend. In contrast, the Krusell et al. model (KORV) explains demand shifts by (observable) changes in the capital stock under a capital-skill complementarity technology. The results show that while the KM model predicts that the skill-premium will have increased by 30% in 2020, based on realistic predictions of the stock of capital, the KORV model predicts that the skill-premium will remain between ?5 and +5% of its 1996 level.