The synergistic effect of insurance and banking sector activities on economic growth in Africa

It is widely understood that the insurance and banking sectors of every economy perform some functions in driving economic growth. What is not yet well documented is whether their roles are complimentary or substitutive. With the aid of the dynamic panel generalized method of moments (GMM) estimation technique, this paper evaluates the synergistic effect of both sectors on economic growth in a panel of 10 African countries that are responsible for most of the activities in the continent’s financial sector. The insurance-banking-growth nexus was also examined through bootstrap panel causality tests. The results show that the life insurance market and the banking sector, as well as the non-life insurance market and the banking sector, are complimentary. We find that, overall, the relationship between the insurance and banking sectors in Africa is a complimentary one and that their synergistic impact on economic growth is positive. The feedback hypothesis was also confirmed in the relationship between the insurance sector and economic growth and between the banking sector and economic growth.     

Environmental policies,national culture,and stock price crash risk: Evidence from renewable energy firms

This study investigates the impact of country‐level environmental performance and national culture on the stock price crash risk of renewable energy firms. Employing a large sample of 626 renewable energy firms across 31 countries, we find a significant nonlinear relationship between country‐level environmental performance and crash risk. National culture dimensions are found to strongly predict the crash risk of renewable energy firms, particularly after the global financial crisis. On the contrary, national culture dimensions and environmental policies are observed to not exert any significance in explaining the crash risk of fossil fuel firms. Our results are robust with respect to alternative measures of stock price crash risk and the endogeneity of national culture dimensions. Overall, the findings of this paper contribute to the environmental economics literature by providing new evidence regarding the role of societal and environmental factors in explaining the stock price crash risk of energy firms.     

An in-sample and out-of-sample empirical investigation of the nonlinearity in house prices of South Africa

This paper tests whether housing prices in the five segments of the South African housing market, namely large-middle, medium-middle, small-middle, luxury and affordable, exhibit non-linearity based on smooth transition autoregressive (STAR) models estimated using quarterly data from 1970:Q2 to 2009:Q3. Findings point to an overwhelming evidence of non-linearity in these five segments based on in-sample evaluation of the linear and non-linear models. We next provide further support for non-linearity by comparing one- to four-quarters-ahead out-of-sample forecasts of the non-linear time series model with those of the classical and Bayesian versions of the linear autoregressive (AR) models for each of these segments, for the out-of-sample horizon 2001:Q1 to 2009:Q3, using the in-sample period 1970:Q2 to 2000:Q4. Our results indicate that barring the one-, two and four-step(s)-ahead forecasts of the small segment, the non-linear model always outperforms the linear models. In addition, given the existence of strong causal relationship amongst the house prices of the five segments, the multivariate versions of the linear (classical and Bayesian) and STAR (MSTAR) models were also estimated. The MSTAR always outperformed the best performing univariate and multivariate linear models. Thus, our results highlight the importance of accounting for non-linearity, as well as the possible interrelationship amongst the variables under consideration, especially for forecasting.     

Are supply chain management theories culturally constrained? An empirical assessment

Culture plays an increasingly important role in supply chain management as many manufacturing firms have linkages to suppliers and customers from various countries. In this paper we propose treating culture as an explanatory variable to test the assumption that existing theories are universally applicable. The primary research question was: Do purchasing theories built on samples from mainly North American companies with Anglo-Saxon cultures apply in other cultural contexts? We developed and tested a model where top management??s view of the purchasing function affects purchasing practices and manufacturing performance. The statistical results provide evidence that the engagement and efficacy of purchasing practices is highly dependent on culture. This finding has significant implications from the perspective of decision making in international supply chain management. Specifically, top managers across multiple cultures could decide to structure and evaluate the purchasing function similarly, but these decisions could lead to different practices and different outcomes depending on the culture.     

The out-of-sample forecasting performance of nonlinear models of regional housing prices in the US

This article provides out-of-sample forecasts of linear and nonlinear models of US and four Census subregions’ housing prices. The forecasts include the traditional point forecasts, but also include interval and density forecasts, of the housing price distributions. The nonlinear smooth-transition autoregressive model outperforms the linear autoregressive model in point forecasts at longer horizons, but the linear autoregressive and nonlinear smooth-transition autoregressive models perform equally at short horizons. In addition, we generally do not find major differences in performance for the interval and density forecasts between the linear and nonlinear models. Finally, in a dynamic 25-step ex-ante and interval forecasting design, we, once again, do not find major differences between the linear and nonlinear models. In sum, we conclude that when forecasting regional housing prices in the United States, generally the additional costs associated with nonlinear forecasts outweigh the benefits for forecasts only a few months into the future.     

An analysis of snow options for ski resort establishments

This study proposes a pricing method for put options on snow level for tourism establishments operating in Palandoken ski resort in the east of Turkey. In the calculation of put prices historical densities and Edgeworth adjusted densities methods together with Alaton, Djehiche, and Stillberger (2002) method have been applied. The findings show that there may be significant differences in the prices calculated by the three different methods, hence enabling both parties, i.e. buyers and sellers, with bases in the negotiation process. As the study is primarily aimed at providing a framework for pricing put options on snow levels in general, it is expected that it would be of use not only for this particular ski resort but also for various ski resorts in the world.     

The impacts of Radio Frequency Identification (RFID) technology on supply chain costs

Radio Frequency Identification (RFID) is regarded as a promising technology for the optimization of supply chain processes since it improves manufacturing and retail operations from forecasting demand to planning, managing inventory, and distribution. This study uses a simulation model to calculate the expected benefits of an integrated RFID system on a three-echelon supply chain obtained through performance increases in efficiency, accuracy, visibility, and security level. The study investigates how the product value, lead time, and demand uncertainty affect the performance of the integrated RFID supply chain in terms of cost factors at the echelon level.     

DISGUISED UNEMPLOYMENT AND AGRICULTURAL DEVELOPMENT

This paper presents a theoretical analysis of disguised unemployment in less developed countries, which tends to lend support for agricultural development policies as the most effective means of eliminating such unemployment. In addition, it is shown that urban unemployment may also be remedied through such policies. The overall conclusion of the theoretical analysis is that agricultural policies in the less developed countries manifesting disguised and urban unemployment should, as a first target, aim at maintaining farming activities throughout the calendar year at levels achieved during peak seasons.
CHOMAGE DEGUISE ET DEVELOPPEMENT AGRICOLE – Ce mémoire présente une analyse théorique du chômage déguisé dans les pays sous-développes. ľanalyse tend à favoriser une politique de développement agricole comme moyen ďéliminer un tel chômage. En outre, il est démontré que ľon peut améliorer le chômage urbain par une telle politique. La conclusion principale c'est que la politique des jeunes nations (affligées de chômage et déguisé et urbain,) doit se concentrer premiérement à soutenir pendant toute ľannée le niveau ďemploi des périodes de la plus grande production.     

The Vortex of Rights: ‘Right to the City’ at a Crossroads

The right to the city concept has recently attracted a great deal of attention from radical theorists and grassroots activists of urban justice, who have embraced the notion as a means to analyze and challenge neoliberal urbanism. It has, moreover, drawn considerable attention from United Nations (UN) agencies, which have organized meetings and outlined policies to absorb the notion into their own political agendas. This wide‐ranging interest has created a conceptual vortex, pulling together discordant political projects behind the banner of the right to the city. This article analyzes such projects by reframing the right to the city concept to foreground its roots in Marxian labor theory of value. It argues that Lefebvre's formulation of the right to the city — based on the contradiction between use value and exchange value in capitalist urbanism — is invaluable for analyzing and delineating contradictory urban politics that are pulled into the vortex of the right to the city. Following Lefebvre's lead in such an analysis, however, reveals certain limitations of Lefebvre's own account. The article therefore concludes with a theoretical proposition that aims to open up space for further critical debate on the right to the city.