Browsing by Issue Date, starting with "2020-01-21"
Now showing 1 - 4 of 4
Results Per Page
Sort Options
- Consumer preferences for aquaponics: a comparative analysis of Australia and IsraelPublication . Dos Santos, Maria José Palma LampreiaAquaponics, the combined rearing of fish and hydroponic horticulture, has great potential for sustainable food production. Despite increasing research and investments in commercial scale systems, aquaponics is not yet a successful industry and most businesses report negative returns. Aquaponic produce is thought to contain added value to the consumer, and the environment. As most consumers are unaware of aquaponics and their benefits, little is known of its potential market. The present study addressed this gap by analysing willingness to consume aquaponic produce at different price levels in Israel and Australia. We used econometric tools to study the effects of pricing and other factors on revenues in each country. Cluster analysis was used to define groups of potential consumers. The results indicate that 17-30% of the population would prefer to consume aquaponic produce once informed of their added value. Revenues at a given premium would be higher in Israel than in Australia, and higher for a leafy green, than for fish. Different segments of the population differed in their willingness to consume aquaponic produce, as well as in their stated motivations when purchasing food. Conclusions highlight the importance of case-specific research on consumer preferences and economic considerations preceding commercial investment in aquaponics.
- Volatility among stock markets: investigation from SAARC countriesPublication . Dos Santos, Maria José Palma LampreiaStock market investment has attained popularity all over the world. Speculators try to invest in the stock markets when they booming and withdraw their investments when they declining. Volatility measure the range of fluctuation in the average return of any investment. It is important for investors to understand the volatility of stock markets. The main aim of this paper is to measure the volatilities among Asian stock markets between Jan 2013 to Dec 2018 to determine the direction of volatility and rank these stock markets on the basis of volatility, and to determine the flow of mean reversion and the number of days it takes to make adjustments in the short run. Methods include GARCH (1,1) model with significant effects of ARCH (1) and GARCH (1).. Results show that the volatility has been observed by BSE Sensex (Mumbai) that is 25.52, followed by 15.01 in DSE 20 (Dhaka), however, the S&P SL20 (Colombo) observed the lowest volatility among the stock returns with a coefficient of variation -77.97. BSE Sensex (Mumbai) has the slowest mean reversion since the sum of its GARCH coefficient is closest to 1. This study helps a lot in increasing the existing body of knowledge as no study has been conducted to measure the volatility and mean reversion of the stock returns of the indices of developing countries. This would help researchers in conduction new extended studies like incorporating exponential smoothening techniques and returns patrons.
- Big data and artificial intelligence: challenges and opportunities for management and businessPublication . Dos Santos, Maria José Palma LampreiaWith increase of digitization, advent of disruptive technologies and their diffusion in the society lead to challenges for today’s business managers, academicians and to global society as a whole. Hence, there is colossal emphasis on data sciences. Today’s consumers including millennials appear far more informed. The socio-economic situations and trends around the globe seem to be rapidly changing. The social and management scientists today are unable to predict the emerging trends, issues, and changing social perspectives cum uncertain environment with 100% accuracy. From governments to private sector, industry, and markets are now more data-driven than ever before. There is an inclination toward big data, data analytics and informed decision-making. This presentation tries to overcome this gap on the literature and presents the latest development, challenges in the themes Big Data and Artificial Intelligence, issues and solutions faced by organizations, communities and societies with particular interest for management and business students.
- Free trade and implications for hungerPublication . Dos Santos, Maria José Palma LampreiaFree Trade are the numerous forms of elimination of trade barriers among regions on the world. Usually they the intent to eliminate the trade barriers by the construction of trade agreements that usually allow various types of international economic integration agreements, namely, free trade agreements, customs unions, common markets, and economic unions, etc. This paper refers to the elimination of barriers among countries and regions on trade mainly in countries in development promote the economic development by bringing new countries with competitive advantages to the international commerce. Also, new innovative techniques of production foods are referred, as aquaponics production in order to contribute to zero hunger. As a consequence, the international supply of food generally increases at the beginning the prices decrease and allow to increase the demand of food, that means a construction, in ceteris paribus of a new market equilibrium higher than the initial that will contribute for food security and for the reduction of hunger around the world. This is also one of the Sustainable Goals from United Nations to achieve.