Measuring environmental performance with stochastic environmental DEA: The case of APEC economies

Data envelopment analysis (DEA) has been widely used for environmental performance measurement at different levels. Most of environmental DEA models take the deterministic form without considering random factors. This paper presents a stochastic environmental DEA model that can measure environmental performance under random conditions. The proposed model has been applied to evaluate the environmental performance of Asia-Pacific Economic Cooperation (APEC) economies in 2010. The results indicate that the stochastic pure environmental performance of APEC economies is indeed affected by random factors. Especially, the fluctuation of Republic of Korea's stochastic pure environmental performance is most obvious among all the APEC economies.     

An econometric analysis of health care reform in the U.S.

This paper simulates the effects of funding a comprehensive health plan (CHP) on consumer spending in the U.S. using a demographically enhanced dynamic Almost Ideal Demand System model. Quarterly observations on personal consumption expenditures and the relevant price indices of seven major commodity and service groups in the U.S. for the period 1963. 1 through 1989.4 comprise our data set. Our results show that the CHP financing causes no significant adjustment on the demand-side of the economy, i.e., consumer expenditures on the seven major commodity and service groups would decrease slightly in the short run under the CHP financing. (JEL D00)     

Residential location: A comparative econometric analysis

This paper deals with the interaction between procurement and production management. The production costs crucially depend on the materials, components and subassemblies purchased by the procurement department, and on the effort expended by the production department. An agency model is utilized based on the scanlon-Atkinson plans which share gains from production cost improvement after attaining pre-specified cost standard. The materials' quality is used to adjust the cost standards for the prodcution department. It is shown that in both the first-best and second-best cases, profit-sharing compensation is always preferred to fixed salary by the risk-averse principal. Comparing with the first-best case, the principal has to provide a greater sharing pool in order to induce the managers' efforts, and each manager, in fact, works less hard in the second-best case. The agents' compensations are tied to their positions as well as their risk attitudes when all principal lacks a costless benefits the most from such a circumstances. Agency cost is then considered as the expected value of getting a perfect monitoring mechanism. detailed comparative statics are provided to suggest the principal ways of modifying existing compensation plans due to the changes of structural parameters.     

Using independent component analysis and network DEA to improve bank performance evaluation

Given the importance of accurate performance evaluation for the banking industry, this paper uses data on Taiwanese domestic banks and investigates whether it is useful to construct an integrated performance model in order to address the problems of efficiency-analysis with the aid of an independent component analysis (ICA) and a network slacks-based measure (NSBM). ICA is related to the search for latent information; in it, independent components (ICs) from the observed data and selected statistically unrelated ICs are used as new input, intermediate, and output variables for the NSBM. The NSBM is then used in the investigation of multiple-dimension efficiencies, along with operating performance, in the Taiwanese domestic banking sector. The results show that the proposed ICA-NSBM model provides sufficient information to determine the main sources of inefficiency at the dimensional level and demonstrates excellent significant discriminative capability.     

Economies of scale in public education: an econometric analysis

This article investigates the sources of scale economies in the production of public education. The relationship between the average cost of producing educational output and school characteristics including school and district size is estimated using a neoclassical cost function. The empirical analysis used panel data from Utah school districts and estimates the function using the covariance and error component models after making necessary corrections for heteroskedasticity and autocorrelation. The uncorrected fixed effects model generates a significant negative coefficient on district size in both the cost and expenditure functions; the coefficient on number of students has the hypothesized sign but is not significant in either equation. After making various corrections for autocorrelation and heteroskedasticity, the coefficients have the correct signs and are significant in all equations. Thus, it is concluded that scale economies arise from both sources but that the evidence is stronger for district size.     

Time-driven activity-based cost analysis for outpatient anticoagulation therapy: direct costs in a primary care setting with optimal performance

Objectives: To determine how overall cost of anticoagulation therapy for warfarin compares with that of Novel Oral Anticoagulants (NOACs). Also, to demonstrate a scientific, comprehensive, and an analytical approach to estimate direct costs involved in monitoring and management of anticoagulation therapy for outpatients in an academic primary care clinic setting, post-initiation of therapy.

Methods: A population-based cross-sectional study was conducted in conjunction with observations of patient care processes between August 2014 and January 2015. The study was conducted in an academic primary care outpatient setting at Mayo Clinic’s warfarin anticoagulation clinic, Rochester, MN. The anticoagulation clinic serves patients 18?years of age or older in Warfarin therapy management, for any indication, after referral from the patient’s primary care provider. The study included anticoagulation clinic enrollment data on a population of 5,526 patients. Time-Driven Activity-Based Costing (TDABC) technique was applied. Detailed process flow maps which showed process steps for all the anticoagulation program components and care continuum phases were created. Staff roles associated with each of the process steps were identified and displayed on the maps. Process times and costs were captured and analyzed. The main outcome was direct cost of monitoring and management of anticoagulation therapy, post-initiation of therapy.

Results: The cost of warfarin management for patients who display unstable International Normalized Ratio (INR) is more than three times those who display stable INR over time. (Comparator to distinguish stability: Frequency of point-of-care visits needed by patients.) For complex anticoagulation patients, total cost of medication and monitoring for warfarin anticoagulation therapy is similar to that for NOACs.

Conclusion: Despite warfarin being significantly less expensive to purchase than NOACs, overall warfarin management incurs higher costs due to laboratory monitoring and provider time than NOACs. NOAC treatment, therefore, may not be more expensive than warfarin therapy management for complex anticoagulation patients.     

Technology transfer to the USSR: An econometric analysis

A production-function study is undertaken that attempts to estimate the marginal productivity of machinery imported from the West for Soviet industry, and for the subsectors of chemicals, petroleum, and machinery during the period 1960–1975. The basic conclusion is that the marginal productivity of imported Western capital is not significantly different from that of capital of non-Western Western origin. It seems quite difficult to detect any influence of Western technology on the Soviet economy from the aggregate time-series data available to us.     

Causality between income and emission: a country group-specific econometric analysis

Empirical studies of the Environmental Kuznets Curve (EKC) examine the presence or otherwise of an inverted U-shaped relationship between the level of pollution and the level of income. Customarily, in the diagram of EKC the level of income is shown on the horizontal axis and that of pollution on the vertical axis. Thus, it is presumed that the relationship between income and pollution is one of unidirectional causality with income causing environmental changes and not vice versa. The validity of this presumption is now being questioned. It is being asserted that the nature and direction of causality may vary from one country to the other. In this paper, we present the results of a study of income–CO₂ emission causality based on a Granger causality test to cross-country panel data on per capita income and the corresponding per capita CO₂ emission data. Briefly, our results indicate three different types of causality relationship holding for different country groups. For the developed country groups of North America and Western Europe (and also for Eastern Europe) the causality is found to run from emission to income. For the country groups of Central and South America, Oceania and Japan causality from income to emission is obtained. Finally, for the country groups of Asia and Africa the causality is found to be bi-directional. The regression equations estimated as part of the Granger causality test further suggest that for the country groups of North America and Western Europe the growth rate of emission has become stationary around a zero mean, and a shock in the growth rate of emission tends to generate a corresponding shock in the growth rate of income. In contrast, for the country groups of Central and South America, Oceania and Japan a shock in the income growth rate is likely to result in a corresponding shock in the growth rate of emission. Finally, causality being bi-directional for the country groups of Asia and Africa, the income and the emission growth rates seemed to reinforce each other.     

Investment growth fluctuations in the Soviet Union: An econometric analysis

This paper investigates the determinants of overall investment growth in the Soviet Union by means of an econometric analysis using data for 1959–1982. Theory suggests that investment growth responds to structural pressures toward high growth and to the intensities of shortage in the economy. Econometric results are encouraging since the fitted variable follows, with the exception of 1966, all peaks and troughs of investment growth.     

Functional income distribution and growth in Thailand: A post Keynesian econometric analysis

The aim of this article is to analyze the effect of the income distribution between labor and capital on the growth performance of Thailand from a post Keynesian view. It rests on the theoretical model of Bhaduri and Marglin (1990 Bhaduri, A., and Marglin, S. “Unemployment and the Real Wage: The Economic Basis for Contesting Political Ideologies.” Cambridge Journal of Economics, December 1990, 14 (4), 375–393.[Crossref], [Web of Science ®] , [Google Scholar]) to see if an increase in the labor income share has a sufficient positive effect on consumption to offset a negative effect on investment and export demand. In order to investigate the question empirically we adopt and develop the approach of Stockhammer, Onaran, and Ederer (2009 Stockhammer, E.; Onaran, Ö.; and Ederer, S. “Functional Income Distribution and Aggregate Demand in the Euro-area.” Cambridge Journal of Economics, 2009, 33 (1), 139–159.[Crossref], [Web of Science ®] , [Google Scholar]). Several measures of the labor income share are calculated to take into account the fact that wage labor represents only half of the total labor force and check the robustness of our results. We also introduce a new treatment of external trade to better integrate the price competitiveness of Thailand. The econometric investigation shows that the growth regime is profit-led over the period 1970–2011, which shows that rebalancing the Thai economy will be difficult and requires an overall change of strategy going beyond a simple prolabor policy.     

Oil dependency of the Russian economy: An econometric analysis

A macro econometric model of the Russian economy is tailored to analyze the effects of changes in the oil price and alternative fiscal policies. Model simulations indicate that the Russian economy is vulnerable to large fluctuations in the oil price, but we also find evidence of significant economic growth capabilities in the absence of oil price growth. A higher oil price not only leads to higher economic growth and savings in the sovereign wealth fund, but also induces a rupture in the Russian economy. Public spending and household spending increase while the traditional export industries suffer from real appreciation, in line with the Dutch disease hypothesis. We also show that alternative policies for spending of the petroleum income may have considerable consequences for economic growth, the degree of crowding out of traditional export industries and wealth accumulation in the fund.     

Caste discrimination in the Indian urban labour market: An econometric analysis

This paper uses Degree Holders and Technical Personnel Survey of India to examine the wage gap between Non-Scheduled Castes/Tribes(NSC) and Scheduled Castes/Tribes(SC/ST). Separate wage equations, corrected for selection bias, are estimated for NSC and SC/ST. The parameter estimates of the wage equations were decomposed into ‘endowment’ and ‘treatment’ components using the familiar Oaxaca Decomposition Method. A separate account was also made to analyze the interaction between occupational attainment and the wage differential using the extended decomposition method. The main conclusion from the econometric results are: (a) the endowment difference is higher and discrimination causes 15 per cent lower wages for SC/ST as compared to NSC; (b) the discrimination coefficient is negative in the public sector whereas it is positive in the private sector; (c) intraoccupational wage effects dominate. The higher endowment difference in developing countries like India implies that the pre-market discriminatory practice with respect to education, health and nutrition are more crucial than labour market discrimination. (JEL: J3)     

Intra-industry spillovers and innovation: An econometric analysis at the firm level

This paper studies spillover effects of innovation at the firm level and the comparability of generalized method of moments (GMM) estimators with maximum likelihood estimators of the earlier studies. Two sources of spillovers are identified, i.e. intra-industry R&D expenditure and intra-industry innovation output. This paper estimates a negative R&D spillover effect and a positive output spillover effect. Because of the substitution effect of intra-industry R&D spillovers, the elasticity of patent with respect to firm's own R&D expenditure is greater than those estimated in the earlier studies. With GMM, individual effects are incorporated into the models either by developing proxies for them or attempting to eliminate them.     

Economic dynamics and forest clearing: A spatial econometric analysis for Indonesia

This paper uses a large panel database to investigate the determinants of forest clearing in Indonesian kabupatens since 2005. Our study incorporates short-run changes in prices and demands for palm oil and wood products, as well as the exchange rate, the real interest rate, land-use zoning, forest protection, the estimated opportunity cost of forested land, the quality of local governance, the poverty rate, population density, the availability of communications infrastructure, transport cost, local rainfall and terrain slope.The econometric results highlight the role of dynamic economic factors in forest clearing: significant roles for lagged changes in all the short-run economic variables—product prices, demands, the exchange rate and the real interest rate—as well as communications infrastructure, some types of commercial zoning, rainfall and terrain slope. We find no significance for the other variables, although our measure of protected-area status is too general for strong conclusions to be drawn about the empirical relationship between forest clearing and protection. It is also possible that the insignificance of transport cost in our results is due to collinearity with our proxy for communications cost, and/or the offsetting effects of transport cost on the direct profitability of forest clearing (negative) and the effectiveness of local forest regulation (positive).Our results strongly support a model of forest clearing as an investment that is highly sensitive to expectations about future forest product prices and demands, as well as changes in the cost of capital (indexed by the real interest rate), the relative cost of local inputs (indexed by the exchange rate), and the cost of land clearing (indexed by local precipitation). By implication, the opportunity cost of forested land fluctuates widely with changes in international markets and decisions by Indonesia's financial authorities about the exchange and interest rates. Our results suggest that forest conservation programs are unlikely to succeed if they ignore such powerful forces.     

Consumption and credit in a less developed country:-An econometric analysis of Egypt-

A well-known aspect of underdevelopment is whatMcKinnon termed ’financial repression’. Curiously, this aspect was overlooked by development theorists, who transplanted to their models consumption functions designed for advanced market economies where financial repression is virtually absent. 2 The main object of this study is to explore its effect on Egypt's private consumption. In addition, the author examines the relevance to Egypt of the ”permanent-income” and ”life-cycle” hypotheses, the effect of changes in both the functional and size distributions of income (caused by the drastic egalitarian measures undertaken by Egypt's revolutionary regime), and provides time-series estimates of income and price elasticities of food and non-food consumption (for the period 1957 – 1973). In the process, cross-section estimates from Egypt were briefly surveyed, for critical comparison with the paper's estimates.