توسعه و رشد اقتصادی در کلمبیا : تجزیه و تحلیل تجربی با تحلیل پوششی داده سوپر بهره وری و مدل های داده های پانل
|کد مقاله||سال انتشار||تعداد صفحات مقاله انگلیسی||ترجمه فارسی|
|4507||2011||11 صفحه PDF||سفارش دهید|
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Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)
Journal : Socio-Economic Planning Sciences, Volume 45, Issue 4, December 2011, Pages 154–164
In this paper, we analyse economic development and growth through traditional measures (gross domestic product and human development index) and Data Envelopment Analysis (DEA) in Colombian departments over the period 1993–2007. We use a DEA model to measure and rank economic development and growth from different approaches such as poverty, equality and security. The results show considerable variation in efficiency scores across departments. A second-stage panel data analysis with fixed effects reveals that higher levels of economic activity, quality life, employment and security are associated with a higher efficiency score based on the standards of living, poverty, equality and security. All findings of this analysis should demonstrate that economic development and growth could be achieved most effectively through a decrease in poverty, an increase in equality, a reduction in violence, and improved security. This indicates the need to generate effective policies that guarantee the achievement of these elements in the interest of all members of society.
In recent years, scholars have come to recognise that weak or ineffective states generate insecurity, conflict, violence, political instability, human rights violations, poverty and corruption; this is reflected by a decrease in the economic growth and development of regions or countries with poor governance and management  and . Therefore, improvements in the effective presence of the state through good governance and management are key strategies to foster economic growth and development as well as population welfare and to decrease the potential for conflicts and violence. Fragile states are usually found in developing countries. Therefore, and with the aim of achieving the Millennium Development Goals (MDGs), it is important to improve governance and management to obtain stability, decrease poverty and increase economic development and growth. There is a general agreement that improvements in economic development and growth are more effective where there are good policies and strong institutions; likewise, the strategies to reduce poverty require a high degree of state effectiveness to create adequate management through the application of high quality strategies, programs and instruments . The academic literature refers to economic growth when dealing with proportional changes in gross domestic product (GDP) or a sustained increase in per capita or per worker product, most often accompanied by an increase in population and usually by sweeping structural changes ,  and . On the other hand, development analyses living standards and the literature include features that are not necessarily appropriate monetary indicators. Thus, the concepts of economic development and growth are currently oriented toward creating a suitable environment where individuals can strive to enhance welfare, make use of available technology and acquire new knowledge in a secure environment . Economic growth and development have a strongly relation. Economic growth supplies the resource to drive a rise on development and enhancements in the human development guarantee economic growth by the increment in the quality of labour force. Economic development is the improvement in the standard of living of population with sustained growth from a simple, low-income economy to an advanced, high-income economy (See Fig. 1). When the quality of life betters this generate development, which include process and policies that raise the economic, political and social wellbeing of the nation’s society. The purpose of development policies is to accumulate several productive factors to begin a sufficient economic growth that causes improvements on standard of living, reduction of inequalities, and increases welfare of population , , , ,  and . Fig. 1 also shows some preliminary baseline patterns of the relationship between Economic development (in particular, Standard of living, poverty, equality, security and human development) and Economic Growth. The relations reported in this figure are not causal, but provide evidence of interesting relations for the analysis in Sections following.The most widely used indices for ranking countries according to economic development and growth are GDP or, more frequently, GDP per capita, and the human development index (HDI).1 GDP is used mainly as an economic indicator to measure and compare the welfare, standard of living or economic wellbeing of different countries or regions, whereas the HDI is an annual publication of the United Nations Development Program (UNDP) that analyses global human development in the Human Development Report. In addition to country rankings, poverty, literacy, education, and life expectancy are all used to determine countries’ level of development. In the current scholarly literature, it is widely accepted that traditional measures of economic development and growth such as GDP or per capita incomes and HDI can provide only an incomplete picture of how well countries or regions are doing because these indexes exclude other important socioeconomic variables , ,  and . In the case of GDP, the relationship between economic growth and social welfare is not straightforward. This index is limited because it does not incorporate various aspects that determine individual and environmental wellbeing, such as the value of non-market goods and services (e.g., ecosystem services, unpaid labour, and leisure) or distributional issues and because it focuses on current economic activities or flows, rather than on the developments in natural, economic and social capital, which are important from a long-term perspective . However, HDI also does not indicate other important variables, including environmental degradation, security or inequalities within countries and between sexes, and depends on data that are not always available, particularly in low-income countries (e.g., on life expectancy, literacy and education). This index could be redundant as a development indicator: if there is a major and positive correlation between HDI and any of its components, it offers few additional insights into inter-country development levels  and . Studies to measure and rank economic development and growth across countries have used varied approaches. For example, Peniwati and Hsiao (1987)  suggested a composite index that included GNP per capita, physical quality of life, percentage of national income received by the poorest 40%, population density in agricultural areas, political rights and civil liberties, number of telephones per capita and number of drug-related offenses. They found that GNP and equality rankings had the widest variations, whereas rankings in terms of the index of physical quality of life and the index for measuring net social progress showed the narrowest variations. Bassanini and Scarpetta  analysed the driving forces behind economic growth in OECD countries using panel data and found that differences in investments rates, human capital, R&D, trade exposure, financial structures, macroeconomic conditions and policy settings seem to play an important role in determining observed GDP per capita patterns across countries. Changes in these factors can be rapidly translated into changes in living standards . Analysing HDI, Nagar and Basu (2001)  adopted the latent variable approach to analyse 174 countries, and they confirmed that with the addition of other socioeconomic, the alternate HDI rankings differ significantly from the official UNDP ranking. Dowrick et al. (2003)  suggested an index to incorporate GDP, consumption and life expectancy, demonstrating that the HDI implicitly values life expectancy over its opportunity cost and that estimates of the effect of human capital investment on economic growth may understate the welfare benefits if they measure growth solely in terms of GDP and ignore important indicators such as life expectancy. Grimm et al.  suggested a methodology to introduce inequality in the three dimensions of HDI, which allows a comparison of the degree in human development of the poor with the level of the non-poor within and across countries. They found that inequality in income is generally higher than inequality in education and life expectancy and that the HDI rankings differ more in moderately developed countries, whereas in very rich and very poor countries, the differences are lower. In recent years, data envelopment analysis (DEA) has gained great popularity in measuring and ranking economic development and growth. Mahlberg and Obersteiner (2001)  proposed an alternative method to compute the HDI using DEA and compared the results with the original HDI. They found that the main advantages of DEA models are that they endogenously build a non-linearly scored set of best practice countries and that the weights of each indicator entering the HDI is endogenously determined established on an optimisation calculus. Despotis (2005)  generated a DEA-like linear programming model to calculate the relative performance of the countries in terms of human development. He indicated that the new estimate of human development is equivalent and highly correlated with the HDI and that this is because the weights assumed for the component indicators, as a result of an optimisation process, are less arbitrary and contestable in contrast with HDI. Moreover, Raab and Habib (2007)  applied DEA to maximise the components of GNP, subject to minimising specific resource-input measures, and provided international production-efficiency rankings. This measure allows the comparison of countries in various stages of sustainable development on comparable inputs and outputs as variables of economic growth and development. Malul et al. (2008)  measured and ranked nation-states’ governance effectiveness and quality using DEA and introduced into the efficiency ranking indicators of the equality in income distribution in the country and of environmental performance. They established that the GINI index and environmental performance influence the rankings of developing countries in a more meaningful manner and that traditional ranking methods (i.e., GDP or HDI) could only be utilized to describe the efficiency of developed countries. Despotis et al.  showed a general modelling approach for dealing with nonlinear virtual outputs and/or inputs in DEA, and this model was used to describe the decreasing returns in the HDI from income. They demonstrated that the modelling approach is capable of establishing the particular feature detailed in the HDI. In Colombia, studies on economic development and growth have mainly analysed growth and economic development using traditional methods. Cardenas and Ponton (1995)  identified the differences in income per capita in Colombian states between 1950s and 1990s and demonstrated that investments in education, labour productivity and exports are determinants of economic growth. Sanchez and Nuñez (2000)  studied the relationship between geographical situation, population and income in Colombian municipalities using empirical analysis. They found that geography affects both the level of municipal income per capita and its growth. They also found that variables such as education, infrastructure and more efficient public institutions generate positive effects on economic growth. Birchenal (2004)  analysed the relationship between the distribution of human capital and economic growth in Colombia based on a heterogeneous overlapping generations model in an imperfect capital market and found that individual aspects of inequality (parental conditioning) and the aggregate incentives of education are the causes of the increase in inequality in Colombia. Melendez and Harker (2008)  studied economic growth to identify its constraints using the growth diagnostics methodology and discovered the critical role of conflict in connection with economic activity due to its negative impact on private investment. Moreover, DEA has been used in Colombia, mainly in the analysis on effectiveness of the Control of Violence and Socioeconomic Development , energy (in the context of power distribution systems , manufacturing industries ,  and ), poverty and inequality  and the analysis of ranking Colombian research groups  among other. However, studies with traditional or non-traditional measures of economic development and growth have drawn less attention to other variables that could be also their determinants such as the poverty levels, security, and inequality. Moreover, studies that analyse and compare economic development and growth within the regions of a country are limited. With this background, the main goals of this study are twofold. First, the current study attempts to measure and rank economic development and growth used the traditional measures of HDI and gross domestic product in addition to analysing the effects of poverty, security, and inequality using DEA in Colombian departments between 1993 and 2007. Secondly, to identify variations in measured efficiency across departments, we use a data panel analysis with fixed effects in terms of several key characteristics of Colombian departments. The novelty of this study is that it introduces into the efficiency ranking several indicators, including unsatisfied basic needs, the GINI coefficient and homicide rates, because a nation’s development largely depends on these factors and on other conditions of the society. These conditions are analysed using the techniques of data panel analysis to determine whether DEA scores provide an adequate index to measure economic development and growth with different approaches. This paper is organised as follows: Section 2 will introduce the DEA method data and methodology, Section 3 contains the data and models, Section 4 presents the results and discussion and the conclusions are presented in the last section.
نتیجه گیری انگلیسی
In this study, we analyse economic development and growth through traditional measures (Gross Domestic Product and Human Development Index) and Data Envelopment Analysis in the Colombian departments over the period 1993–2007. We use a DEA model to measure and rank economic development and growth taking into account poverty, equality and security. Comparing across Colombian departments, we find that Antioquia, Valle, Cundinamarca, Santander and Boyacá demonstrate the highest efficiency scores based on traditional measures and in the DEA model, whereas Chocó, Sucre, Cauca, Cordoba and Cesar are the worst performers. A second-stage regression analysis reveals that departments with a higher population density and higher insecurity levels have a lower efficiency score. Also, increases in economic activity, health coverage, employment rate and security levels are associated with a higher efficiency score based on standard of living, poverty, equality and security. The DEA model presented in this study to be used together with the traditional measures of economic development and growth could be helpful to the design and implementation of policies that effectively promote economic development and growth. Moreover, the use of DEA in conjunction with other variables provides an alternative method of ranking and measuring efficiency in economic development and growth in different regions or departments. The tests of cross-sectional dependence, heteroskedasticity and serial correlation demonstrated that both DEA scores and the data panel model with fixed effects are adequate to analyse economic development and growth with different approaches and using no traditional measures. In the context of the Millennium Development Goals, all findings of this analysis are important because they demonstrate that economic development and growth can be best achieved through a decrease in poverty, a reduction in violence, an increase in equality and improved security. This indicates the need to generate effective policies that guarantee the achievement of these goals in the interest of all citizens.