Determination of Discrete Spectrum in a Random Field

We consider a two dimensional frequency model in a random field, which can be used to model textures and also has wide applications in Statistical Signal Processing. First we consider the usual least squares estimators and obtain the consistency and the asymptotic distribution of the least squares estimators. Next we consider an estimator, which can be obtained by maximizing the periodogram function. It is observed that the least squares estimators and the estimators obtained by maximizing the periodogram function are asymptotically equivalent. Some numerical experiments are performed to see how the results work for finite samples. We apply our results on simulated textures to observe how the different estimators perform in estimating the true textures from a noisy data.     

Innovation, Imitation and Intellectual Property Rights: A Note on Helpman's Model

This note analyses the effect of the policy of tightening Intellectual Property Rights (IPR) on the rate of innovation in the North and on the welfare in both North and South in a model which is otherwise identical to Helpman (1993) except in the concept of knowledge capital. We assume that the South based imitated products do not contribute to the knowledge capital in the North. It is shown that the tightening of IPR raises the rate of innovation in the North and may improve the welfare of both North and South. These results are significantly different from those in Helpman (1993).     

What drives the cross‐country growth and inequality correlation?

Abstract.  We present a neo‐classical model that explores the determinants of growth‐inequality correlation and attempts to reconcile the seemingly conflicting evidence on the nature of the growth‐inequality relationship. The initial distribution of human capital determines the long‐run income distribution and the growth rate by influencing the occupational choice of the agents. The steady‐state proportion of adults that innovates and updates human capital is path dependent. The output elasticity of skilled‐labour, barriers to knowledge spillovers, and the degree of redistribution determine the range of steady‐state equilibria. From a calibration experiment we report that a skill‐intensive technology, low barriers to knowledge spillovers, and high degrees of redistribution characterize the industrial countries with a positive growth‐inequality correlation. A negative correlation between growth and inequality arises for the group of non‐industrial countries with the opposite characteristics. JEL classification: E1, O4     

Redistributive Tax and Growth in a Model with Discrete Occupational Choice

An optimal redistributive tax-subsidy formula is derived for a growth model where income inequality is endogenously driven by an adult's choice of occupation between work and management. Investment in human capital is the engine of growth. The world's stock of exploitable knowledge as well as the economy's average human capital determine the potential rate of return from investment in human capital in an economy. How much available knowledge would be exploited in the economy depends on the proportion of innovators in our model. A redistributive tax reform impacts growth as well as income inequality via its influence over the occupational choice. The optimal redistributive tax rate is path-dependent in the sense that it depends on the initial wealth distribution. The normative implication of the model is that the optimal capital income tax rate could very well be positive if the initial wealth inequality exceeds a threshold. The optimal capital income tax rate depends inversely on the initial wealth inequality.     

Understanding the economic dynamics behind growth-inequality relationships

In this paper, a dynamic general equilibrium (DGE) model of growth-inequality relationships, with missing credit markets, knowledge spillover and self-employed agents, is calibrated to New Zealand data. The model explains how two distinct policy shocks involving redistribution and immigration imply, subsequently, two completely opposite outcomes. Agents’ inability to borrow aggravates a negative macroeconomic effect of heterogeneity on growth. Redistribution mitigates that effect but creates microeconomic disincentives on saving and work-effort. Consequently, immigration shocks that perturb variance of efficiency induce a negative growth-inequality relationship, while redistribution shocks, in New Zealand’s case, produce larger fluctuations in incentives than in macro benefits, implying a positive growth-inequality relationship.     

The role of export-driven entrepreneurship in economic development: A comparison of software exports from India, China, and Taiwan

In the puzzle of economic development, there is moderate agreement around one issue: that entrepreneurial, export-led development is likely to produce higher economic growth rates than inward-looking development. This paper begins by taking an overall look at the size and competitiveness of the economies of India, China, and Taiwan, with particular reference to the software and the information technology (IT) sectors. It then focuses on the role of software export entrepreneurship in India and Taiwan as exemplars for other sectors and for formulation of government policy. In Taiwan, successful exporters constitute a model deemed worthy for other companies to emulate. In India, whether the booming software sector will prove to be a sufficient exemplar and catalyst for change throughout the economy and government remains an open question. The paper concludes by taking a look at another related export sector—IT-enabled service exports. Throughout the various sections of the paper, government policy implications remain an important backdrop.     

Descending price multi-item auctions

We propose a simultaneous descending price auction mechanism to sell multiple heterogeneous items, each owned by a distinct seller, to a number of buyers. Each buyer has known private valuations on items, and wants at most one item. We show that if the sellers follow a descending price offer procedure and the buyers follow a greedy strategy for accepting the offers, the auction results in a nearly efficient allocation, and terminates close to a competitive equilibrium price vector. The descending price offer strategy of the sellers is close to a Nash equilibrium. However, we show that the buyers are better off waiting in our auction. There is a maximum limit (corresponding to the minimum competitive equilibrium price vector) till which they can wait without running into the risk of not winning any item. If the buyers wait within this limit, the prices can be brought arbitrarily close to a uniquely defined competitive equilibrium price vector.     

Celebrity endorsement: How celebrity–brand–user personality congruence affects brand attitude and purchase intention

The present study provides and tests a conceptual framework aimed at comparing the relative effectiveness of celebrity–user, brand–celebrity, and user–brand personality congruence on brand attitude and brand purchase intention (BPI) thereafter. The data collection was done via an online survey of a representative group of consumers (n = 431) located across India. Hypotheses were tested using regression analysis with mediation approach. The results indicate that while user–brand and brand–celebrity personality congruence have a significant impact on brand attitude and purchase intention, celebrity–user congruence does not. Further, brand attitude is found to be a partial mediator on the relationship between the pair-wise personality congruence on BPI. The findings have major implications for marketers in understanding the significance of personality congruence among celebrity–brand–user in the formation of brand attitude and purchase intention that can be used in positioning and in increasing the advertising effectiveness of brands using celebrity endorsement. The present study is a pioneer in contributing to the celebrity endorsement literature by investigating the relative impact of three pairs of personality congruence: celebrity–brand, brand–user, and celebrity–user, on brand attitude and BPI, thereby supporting the applicability of McCracken's Meaning Transfer Model [McCracken (1989), The Journal of Consumer Research, 16 (3) 310–321) and the Hierarchy-of-effects model (Lavidge and Steiner (1961), Journal of Marketing, 25 (6) 59–62].     

The antecedents of early internationalization: A configurational perspective

The literature on international business and international entrepreneurship provides multiple explanations for early internationalization. Using fuzzy-set qualitative comparative analysis, this study examines the antecedents of early internationalization for small firms based in a small economy, focusing on entrepreneurs’ attitudes toward the economic opportunities available in their domestic market, the risk of internationalizing, and the profitability of entering foreign markets. Three additional antecedents are examined: unsolicited orders, existence of underutilized capacity, and the behavior of competitors. The study uncovers three distinct combinations of antecedents that are equifinally linked to the early internationalization of small enterprises, and contributes to the literature through a multi-causal, configurational approach.     

How does firm experience and institutional distance impact ownership choice in high‐technology acquisitions?

One of the critical reasons for a firm to acquire other firms is to access new technology. This study seeks to understand what ownership position a firm should take in foreign markets if the target is in a high‐technology industry. Specifically, it looks at how firm‐level experience and institutional distance could impact this ownership. Using logistic regression models on a sample of 1,091 cross‐border acquisitions undertaken by firms from 36 countries over an 8‐year time period (2001–2008), we find that when firms acquire targets in a high‐technology industry, they resort to partial acquisitions. Our analysis further suggests that when firms seek targets in high‐technology industries but have experience with acquisitions or face higher institutional distance, the likelihood of full acquisitions over partial ones increases. Study findings contribute to our understanding of the interactive relationship among technology, experience, and institutional distance in determining appropriate ownership choices.