The Inforum Model of the Polish Economy
A demand-oriented model for Poland is developed. A number of special features are incorporated to reflect the realities of the Polish economy and to take advantage of some of the statistics which are available in Poland but not in Western Europe. These special features include disequilibrium indicators in the consumer demand equations, direct measurement of capital stocks and technological progress, allowance for hoarding of obsolete equipment, strong connections between input coeffcients and new investment, and the treatment of liquidity overhang. Results of simulations showed correctly in advance the effects of the 1990 austerity policy. Experiments indicate the best way to use foreign investment funds.
AN INTER-INDUSTRY FORECASTING MODEL OF THE TAIWANESE ECONOMY
The Interindustry Forecasting Model of Taiwan (INFORTW) is presented in this paper. Based on the considerable foundation of data, the INFORTW describes the structure of 47 industries. The real side and price-income sides of the model are described in this paper, as well as the connection between the two. To resolve inconsistent data, the RAS method is employed.
Hedy: A Gradual Language for Programming Education
One of the aspects of programming that learners often struggle with is the syntax of programming languages: remembering the right commands to use and combining those into a working program. Prior research demonstrated that students submit source code with syntax errors in 73% of cases and even the best students do so in 50% of cases. An analysis of 37 million compilations by 250.000 students found that the most common error was a syntax error, which occurred in almost 800.000 compilations. It was also found that Java and Perl are not easier to understand than a programming language with randomly generated keywords, stressing the difficulties that novices face in understanding syntax. This paper presents Hedy: a new way of teaching the syntax of a programming language to novices, inspired by educational methods by which punctuation is taught to children. Hedy starts as a simple programming language without any syntactic elements such as brackets, colons or indentation. The rules slowly and gradually change until the novices are programming in Python. Hedy is evaluated on 9714 programs.