Photonic Crystal and Photonic Crystal Fibers Communications

The development of all optical communications could benefit from the index guiding photonic crystal fibers. In communication the photonic crystal fibers could provide many new solutions. Conventional optical fibers have within the last decades revolutionized the communications industry and it is today a mature technology being pushed to its limit with respect to properties such as losses, single mode operation and dispersion. The spectra have been used by others to develop optical frequency standards. The process can potentially be used for frequency conversion in fiber optic network. In this system the dispersive properties can be controlled by the optical lattice making it possible to achieve phase-matched four wave mixing, like look the process taking place in the photonic crystal fibers. In this paper we will discuss the use of photonic crystal fibers in communications

"Trade Liberalization and Poverty Reduction in General Equilibrium: The Role of Labor Market Structure"

The paper uses a dualistic, compact and "generic" (macroeconomic) computable general equilibrium (CGE) model specially constructed for the purpose of investigating the implications of trade liberalization for poverty reduction in South Asia under different labor market specifications. The model is a stylized representation of economies with large populations including large numbers of both urban and rural poor as in India, Pakistan or Bangladesh. The current "generic" model uses CES production functions and Harris-Todaro type migration model together with Indian data to generate economy wide results. The model's general equilibrium results allow us to test a number of hypotheses regarding the role of labor markets in inducing poverty reduction when trade liberalization policies are adopted.

"On Mortality and Poverty: An Axiomatic Approach With A Modified Index"

The purpose of this note is to analyze a somewhat novel aspect of poverty measurement, namely the impact of premature deaths of poor people on measured poverty. The perverse results one could easily obtain theoretically can be illustrated by using the widely used headcount ratio index. The proposal for a correction offered here involves the introduction of a new axiom of biological stress (ABS) to handle the case of premature mortality among the poor specifically, and to address the issue of increasing biological stress generally. A new headcount ratio index adjusted for the specific biological stress leading to premature deaths among the poor is constructed. It is simple, consistent with ABS, and easy to estimate. It is hoped that given the relevance of the critical demographic variables already acknowledged in the literature, the new index will be of use to the poverty reduction specialists.

"Digital Transitions: The POLIS Theory and The NIEs"

In the fast developing digital technological revolution even the newly industrialized economies (the NIEs) have found it hard to catch up and maintain the pace required for not falling behind. The developing economies are clearly at a great disadvantage in such a fast paced technological race. Thus there is a digital divide that is growing and through a cumulative causation the gap will widen further unless coordinated action is taken. This paper discusses some of the most important economic issues conceptually and offers some modest policy advice. The basic problem of adoption of a new technology system such as the ICT( information and communications technologies) is explored via the theory of a positive feedback loop innovation system (POLIS) in a nonlinear, path-dependent world where institutional structure and its evolution matter crucially. By investing strategically in physical, intellectual and other forms of human and organizational capital as well as building new institutions of cooperation the NIEs may be able to forge a path not only in the ICT sectors, but also create innovation systems of their own that can be extended to region-wide systems. Under the emerging globally competitive market environment this will be the best way to compete dynamically. However, creating comparative advantage in this way requires capabilities that many NIES in Asia will need to promote. Creative policy interventions with a mix of market promotion, good governance, relative openness, and promotion of sustainable development in an equitable manner are necessary if the NIEs are not to be left far behind. The theoretical approach developed here also allows to evaluate the state of the economy and society ethically by extending and incorporating Amartya Sen's capabilities approach within the POLIS.

"Deconstructing Postmodernism and the Mainstream Developmental Discourse of Women's Empowerment in the (South) Asian Context"

This paper starts with an initial gesture accepting the validity of many of the criticisms of modernity by some leading postmodern thinkers. From this initial position, it then evaluates the postmodernist positions themselves with regards to democracy, women's empowerment and justice by paying careful attention to the arguments of these leading postmodernists. It then develops a theory of deep democracy and radical subjectivity which can be used to deconstruct the rhetoric of international organizations on women's empowerment. However, shallow and self-serving as this rhetoric is, it nevertheless can lead to a limited improvement in women's status contrary to the claims of the conservatives. Furthermore, the theory can also be used to de/reconstruct the liberal and social democratic positions on women's empowerment. Such a deep democratic perspective in South Asia focuses attention on enhancing social capabilities through all means, but most importantly through the political self-activities of the multitude---- particularly the radical subjectivities and actions of the most oppressed women who can and will increasingly take leading roles in overcoming the rule of global capital.

"Soft Infrastructure, Trading Costs and Regional Co-operation "

The main purpose of this paper is to clarify some important links between regional co-operation, (soft) infrastructure and trading costs, and to suggest some hypotheses for further investigation. Khan and Weiss(2006) discuss the issue of both hard and soft infrastructure in this context. This paper is a continuation of Khan and Weiss(2006) but in the specific context of soft infrastructure, and particularly governance, including corporate governance. As Khan and Weiss(2006) point out, conceptually such discussions can be seen as a part of the analysis of the 'New Regionalism' The key idea here is co-operation through preferential trade and investment agreements that aim to strengthen structural economic reform, aid economic transformation, attract foreign investment and generally raise the international competitiveness of participating countries. This paper identifies several crucial areas of future research with potentially large value added. The general hypothesis with significant policy implications which can be elaborated and tested is that trade costs are negatively related to the existence of and improvements in soft infrastructure. A related hypothesis is that cross-border cooperation in building and maintaining both hard and soft infrastructure synergistically will lead to a reduction in trade costs. More specifically it will be useful to know the how high are the barriers to trade created by factors like high freight costs, slow port handling, customs delays, lack of competition in the insurance sector, poor corporate governance, unofficial payments and so forth. Some of these factors may be intrinsically difficult to quantify but the potential pay-off from policy-relevant research of this type is enormous. Optimal policies for regional cooperation in soft infrastructure will be difficult if not impossible to formulate in the absence of this type of research.

"Value, Social Capabilities, Alienation:The Right to Revolt"

The labor theory of value in classical political economy, particularly as developed in Marx's Capital, has been the source of a number of interpretations and controversies. The purpose of this paper is to make an analytical distinction between two types of labor theories of value that can illuminate the role of the less well known of the two different theories in understanding the dynamics of capital accumulation and of systemic changes. This qualitative theory of value can be used to explore the significance of value form in both capitalism and the concept and practices of socialism. It can also offer a new way of defending the right to revolt on the part of those who are exploited under both capitalism and socialism.

"China's Energy Dilemma"

PRC's energy dependence is growing and has become a major concern for both economic and national security policymakers in that country. The ambitious goal of modernization of the economy along the lines of the other newly industrialized economies(NIEs) of Asia has succeeded only too well, and it is difficult to reorient economic priorities. If examined rigorously, such an economic strategic assumption can be seen to entail the goal of creating further technological capabilities. In particular, China seems to be firmly committed to the creation of a largely self-sustaining innovation system as part of a knowledge-based economy of the future . Such innovation systems, called positive feedback loop innovation systems or POLIS have been created by advanced countries, and NIEs such as South Korea and Taiwan are proceeding to create these as well. But this will add to its energy burden and further dependence on the US as the power which controls the key sea lanes. Only a strategic reorientation to building a self-sustaining POLIS and appropriate regional cooperation institutions can lead to the way out of the current dilemma for China.

"Women's Rights as Human Rights: A Political and Social Economy Approach within a Deep Democratic Framework"

In this paper we offer the social capabilities based approach to women's rights as human rights. We begin with the standard approach and discuss the universal human rights model before developing the social capabilities approach followed throughout the rest of this paper. In this paper by political economy we mean the classical state and civil society and their interactions. By social economy we mean the underlying social basis of the political economy including the family structure. Khan(1994a,b,1998,2007) presents deep democracy as a structure in addition to formal democratic apparatus such that the practice of such democratic life can be reproduced with the basic values intact. Change is not precluded. But all such changes should deepen democracy, not weaken it. Deep democracy in this sense is intimately connected with economic and social justice. We show that the social capabilities approach, women's rights and deep democracy are related in an intimate way.

Friedman’s Methodology: A Puzzle and A Proposal for Generating Useful Debates through Causal Comparisons (with a postscript on positive vs. normative theories)

Milton Friedman’s “The Methodology of Positive Economies” is still one of the most widely read pieces on economic methodology. One reason for this might be Friedman’s attractive proposal that economists use theories and hypotheses as pragmatic devices to summarize data and make predictions over the relevant range of observations. Logically, this should lead to a fair minded comparison among many contending theories. However, Friedman's actual examples and discussion of these examples raise a puzzle. The field of comparison seems unduly narrow from the beginning. In my attempt to resolve this, I consider some logical and ontological problems for Friedman's position. I end up by suggesting a scientific realist approach to testing theories by causal comparisons over a wide field of contending theories.Positive theory, Normative Theory, Predictability, Scientific Realism, Causal Depth, Causal Comparisons