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In 1978, Putnam presented his "general empirical solution" for the software estimation problem and claimed that the problem was solved. His results continue to be influential, and are sometimes treated as authoritative. Focusing on the effort-duration trade-off, we evaluate his study and its results, examining both his approach and studies that have been published since. Several serious...
This paper uses panel data of listed small and medium-sized enterprises (SMEs) in China from 2004 to 2012 to examine the sensitivity between investment expenditure and internal cash flow. The high investment-cash flow sensitivity reveals that SMEs face severe financial constraints. Some firms can partly solve this problem by alternative ways. One is to improve their efficiency of internal working...
China's furniture industry has grown rapidly over the past 10 years, making China an important furniture exporter in the world. This paper focuses on the evolution path of R&D capacity and trade of China's furniture industry and their relationship, analyzes the impact of changes in external factors on R&D capacity, trade and profits, and makes predictions for R&D capacity, trade and profits...
This paper examines the relationship between public capital stock and economic growth in different regions in China. A time series analysis is used to estimate the dynamic relationship between public stock and the productivity of the regional economy. The short-run and long-run impacts from public capital stock on the growth of the regional economy are also examined. This research finds that there...
The occurrence of caverns, vugs, fractures, or fractures plus vugs is typically characteristic of a carbonate or volcanic reservoir, such as an Ordovician carbonate reservoir in Tarim or a Carboniferous volcanic reservoir in Karamay. Because the two reservoir types are highly heterogeneous and they are distributed in blocks, it is difficult to determine the productivity of a well therein. For this...
Guarded recursive functions and types are useful for giving semantics to advanced programming languages and for higher-order programming with infinite data types, such as streams, e.g., for modeling reactive systems. We propose an extension of in tensional type theory with rules for forming fixed points of guarded recursive functions. Guarded recursive types can be formed simply by taking fixed points...
This paper presents a new steady-state productivity equation for horizontal wells in gas reservoirs with upper and lower boundary enclosed. Firstly, the fundamental solution to the 3-D steady-state Laplace equation is derived with the philosophy of source and the Green function for a horizontal well located at the center of the laterally infinite gas reservoir, with considering the above boundaries...
Software effort estimation is one of the most important tasks in software engineering. Software developers conduct software estimation in the early stages of the software life cycle to derive the required cost and schedule for a project. In the requirements stage, where most software estimation is conducted, the available information is usually imprecise or incomplete. In this paper, a new regression...
Foreign direct investment (FDI) inflow increases greatly since China's openness and whether FDI is conducive to promote China's technology advance via technology transfer still remains a controversial issue. The paper first uses a classical two-factor production function which divide the economy into domestic and foreign sector, then augments the model, taking into account the externalities by technology...
Whether monetary policy should directly respond to asset boom-bust cycles has been in debate for decades. This paper tries to answer the question from the collateral channel of assets on real economy. By adding a partially endogenous financial shock in a reduced-form New Keynesian model, we find optimal monetary policy exists in the trade-off between current economic growth and future financial instability...
R & D diffusion is the basis and prerequisite for the diffusion of technological innovation, especially the R & D diffusion effect of center city in science and technology plays an important role on the technological progress of surrounding region. This paper describes the systems theory of R & D diffusion and conducts both qualitative and quantitative analysis upon evaluation variables...
As the new leading industry of China, the Internet of Things has drawn much more attention from academic domain. But the study of the industry is almost in qualitative analysis. This paper is going to use self- organization theory and methods, so as to reveal the evolutionary process of the Internet of Things. And put the Haken model into the use of the IOT companies which are on the security market,...
At present, the development of China's dairy industry is an important stage. On the one hand, foreign companies speed up the penetration of Chinese dairy industry; on the other hand, domestic dairy enterprises competed fiercely. It is necessary to objectively measure the contribution of various production factors and technical progress in dairy industry to development in order to achieve a better...
In view of the discontinuity of the data of service sectors due to the diameter change, firstly, the paper measures the total factor productivity growth of service sectors based on input-output tables. Then, using the panel data model, we test the relationship between offshore service outsourcing and the total factor productivity growth of services sectors. The result shows that, currently, offshore...
The Phillips curve around the debate has never stopped, to the specific circumstances of the inflation behavior of the Phillips curve, it is important to explore the underlying causes of change curve of the reasons. This paper argues that productivity is the displacement of the Phillips curve interpretation of the core variables, productivity faster than the nominal amount of the adjustment will be...
In this paper, author applies the frontier production function approach to analyze the economic growth happened in North East of China with the panel data of three provinces in north-east of China during the period 1978 to 2008. Author finds that the contribution of input factors in the process of economic growth is decreasing gradually, and the contribution of total factor productivity is strong...
Using the parameter estimation method and latent variable approach, this paper investigates China's industrial output elasticity and TFP growth, and estimate the contribution of various factors to output growth from 1952 to 2007. The main findings are that the growth mode of industrial is extensive from 1952 to 2007. But the importance of each factors to growth have phased characteristics, especially...
This paper presents the derivation of the state equation of projects that incorporates project size, project duration, project total effort, team size, team productivity and project difficulty. In contrast to existing bottom-up methods of project presentation in the form of statistical relationships between project parameters this new top-down methodology is not a data driven and therefore is more...
Refracturing is an important technique treatment for enhancing oil or gas well productivity at the middle and late stage of low-permeability reservoir development. On the theoretical study of refracturing, most of researchers only focused on the reorientation of refracture while few studies focus on the refracture propagation path simulation. Due to the refracture propagation path depending on the...
According to the characteristics of gas reservoir development and requirement of production management, a new method for analyzing rate decline in fractured well is presented in this paper, which overcomes the disadvantage that conventional rate decline analysis can be used only to determine deliverability and predict gas well performance but not to determine formation parameters. The presented rate...
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