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The examination and identification of solvents and binder resins in particular has been discussed in detail previously. It is the sole purpose of this section to indicate the means available for obtaining these substances from finished paints in such a way as to facilitate their analysis. For example, the ASTM (15) has published a standard procedure for examining the solvent portion of paints by direct injection on to a GC. In this case, so as to prevent blockage of the column by the resin and pigment components, the sample was injected either via a glass injection port sleeve or on to a glass wool plug positioned in the heated injection port. Hence solvent analysis could be carried out without the need to apply any preliminary separation procedures. If however, both solvent and binder resin are to be examined then a procedure for separating these constituents must be applied.

The controversial Prebisch thesis in international economics of development asserts that (i) less‐developed countries (LDCs) experience a long‐run deterioration in their terms of trade with developed countries (DCs), and (ii) these experiences are the cause of the ever‐widening gap in their per capita incomes with DCs. By surveying the controversy and discussing the connection between trends in terms of trade and international economic inequality, this paper attempts to disprove some widely held notions derived from misinterpretations and from broad generalisations with indirect inferences. We conclude that there is need for case studies; in order to evaluate and select appropriate policy options.

Between 1965 and 1973 the percentage of married women practicing contraception in the United States increased from 64.2 to 69.9. This increase was accompanied by changing social values, increased information, and important technological innovations. The major technological innovations were the birth control pill and the Intrauterine Device (IUD), as well as new and safer techniques for female sterilization. The blossoming of private and public family planning programs in this period may also have been instrumental in the increased use of contraception.

Africa is going through a youth bulge with more people under 25 than above 50 in all of its countries. Creating opportunities for the burgeoning number of youth is a challenge that cannot be solved only at the country level. Regional integration policies that expand the opportunity space by increasing the size of economies and markets will be critical. Also needed are regional policies that can support the development and enhancement of innovation systems including investment in science and technology education to speed up the creation of a cadre of young people that can lead the transformation of stages of production from dependencies on primary products and extraction. Policies and Programs that can modernize agriculture and support effective creation of value chains that enhance the value added from agriculture that can excite youth back to the rural areas would also be needed. This paper explores the challenges facing countries in Africa in relation to it’s demographic transition, investigating the type of policies that would be most effective to address the challenge. The subsets of policies at the regional level are given special attention due to their opportunity expanding nature. Concrete examples of what has potential from observed results in other regions of the world are provided.

China's economic transition is essentially the process of China's institutional changes. During the changes, the appearance of institutional innovation is not regular; instead, it is intermittent and random. The purpose of this paper is to show that the fitful appearance of institutional innovation is the root of China's economic growth and fluctuations.

This paper constructs a real business cycle (RBC) model introducing the institutional factor expressed in the quantitative form under the dynamic stochastic general equilibrium (DSGE) framework by measuring China's institutional changes quantitatively.

By comparing the characteristics of the actual economic data with those of the simulated economic data, we find that this RBC model can explain 94.44%, 66.07%, 23.46%, 21.03% and 15.45% of the cyclical fluctuations in output, investment, labor, consumption and capital, respectively.

The impulse response analysis finds that the institutional shocks have a relatively long duration, lasting about 30 years, and decline slowly over time, while technological shocks decline relatively fast, lasting approximately ten years.

In production economics, one of the most interesting questions is that of the causal relationship between technical efficiency and allocative efficiency. This as yet remains a puzzle without a unique answer. There are a few theoretical analyses conceptualizing the relationship, but consensus has not yet been reached, and empirical tests are rare. Presents the empirical results of applying Granger’s (1969) and Sims’ (1972) causality tests using time series data on technical and allocative efficiencies of random samples of Indian farmers. These causality tests, with respect to technical and allocative effciences show that there is unidirectional causality from technical efficiency to allocative efficiency, and that the causative process is not bidirectional.

The prices of construction resources (construction cost) have been increasing faster than construction output prices (construction price) in Hong Kong since the mid‐1970s, giving rise to a long‐term divergence between the two price trends. As the difference has existed for quite a long time, it cannot be adequately explained by a short‐term change in supply and demand conditions. The present paper introduces the major indices that reflect the trends of the prices of construction resources and outputs in Hong Kong. It also attempts to explain, from an economic point of view, the major factors which contributed to the divergence between the long‐term trends of the prices of construction resources and outputs. One of the conclusions is that, for the past 25 years, the productive efficiency of the Hong Kong building industry has benefited from and been greatly upgraded by imported construction technologies, as well as by a burgeoning quality of human resources. The data and examples quoted in the present paper are sided towards building construction. Therefore, the scope of investigation of this paper, strictly speaking, is confined to the building industry, and does not include the building services and civil engineering subsectors. However, because of the higher degree of mechanization and faster technological progress in the civil engineering and building services subsectors, the present author believes that the results and conclusions should also be applicable to the whole construction industry.

Economists have known for some time that increases in the amounts of capital and labour cannot explain all of the growth of output (Kendrick, 1961, 1976). Schultz showed the potential importance of human resource development in explaining this residual when he made estimates of investments in education for the period 1900 to 1957. He stated that educational capital was clearly an important element in production and that it had risen at a much faster rate than reproducible non‐human wealth (Schultz, 1960, 1962).

Research in labour economics during the past several years has led to the development of the theory of human capital. This theory deals with a variety of issues concerning the productivity of people as the result of their human capital.

Outlines the ideas incorporated in “development economics” and criticizes the lack of distinction made by some writers between development and economic growth. Asks whether underdeveloped countries really need a different economic theory from Western Europe and suggests that growth (in gross national product) and development (i.e. structural change) are actually complementary processes. Reviews various theories on the causes of underdevelopment (e.g. market failure, government failure) and strategies to cure it (e.g. government intervention, private initiative, market mechanism); and cites some examples of successful positive intervention.