In this paper, we discuss the (potentially positive) pedagogical role of intrinsic limitations of computational descriptions for mathematical concepts, with special focus on the concept of derivative. Our claim is that, in a suitable approach, those limitations can act for the enrichment of learners’ concept images. We report a case study with a first year undergraduate student and place this i...

Many of the basic concepts of green chemistry are familiar to pollution prevention practitioners. The concepts of substituting less hazardous materials into chemical formulations and reducing wastes have been around for many years. Green chemistry has taken these concepts and expanded the scope of possibilities by fully evaluating all aspects of chemical reactions, processes and formulations. T...

The leading theories of democracy and stakeholder inclusion from traditional democratic theory demonstrate major limitations in conceptualising these interactions in terms of inclusion or equity, key requisites for the achievement of sustainability. Leading interpretations of management theory are also limited, either constrained by narrow concepts of economic development and shareholder accoun...

The incomplete information financial economic equilibrium (IIE) literature has been growing at a growing rate since its inception in the early nineteen eighties. This paper highlights, clarifies, and examines issues and concepts essential to this equilibrium. These include: the number of state variables, irrelevance of separation theorems, unobservable productivity processes that lead to comple...

Economic concepts have provided valuable sources of insight into important concepts underlying agile methodologies. The dynamics of capital markets are understood through the concept of market efficiency; an analogy is developed to project efficiency for understanding the dynamics of agile projects. The efficient project concept is then used to motivate the preoccupation of agile developers wit...

A family of core extensions for cooperative TU-games is introduced. These solution concepts are non-empty when applied to non-balanced games yet coincide with the core whenever the core is non-empty. The extensions suggest how an exogenous regulator can sustain a stable and efficient outcome, financing a subsidy via individual taxes. Economic and geometric properties of the solution concepts ar...

Today, many governments follow a strategy of national competitiveness for fostering economic development. However, there is no accepted theory of national competitiveness but just different concepts behind these policies. This article aims to provide an overview of the different concepts of national competitiveness, starting with a look at firm level competitiveness. The article distinguishes b...

because of the dispersion of activities in big cities, employing highways as the most important connecting way is indispensable. in today world, highways are connection arteries of cities transporting people to their social activities. because of continual use of highway, their walls prepare a context for conveying many social, cultural, economic, etc concepts. that is why most economic promoti...

ECONOMIC-BASE CONCEPTS ......................................................................... 1 Antecedents .............................................................................................. 1 Modern origins......................................................................................... 3 THE STRUCTURE OF MACROECONOMIC MODELS ........................................... 3...