We study the (parameterized) complexity of SHIFT BRIBERY for multiwinner voting rules. We focus on the SNTV, Bloc, k-Borda, and Chamberlin-Courant, as well as on approximate variants of the Chamberlin-Courant rule, since the original rule is NP-hard to compute. We show that SHIFT BRIBERY tends to be significantly harder in the multiwinner setting than in the single-winner one by showing setting...

The goal of this paper is to propose and study properties of multiwinner voting rules (with a particular focus on rules based in some way on single-winner scoring rules). We consider, e.g., SNTV, Bloc, k-Borda, STV, and several variants of Chamberlin–Courant’s and Monroe’s rules, identify two natural approaches to defining multiwinner rules, and show that many of our rules can be captured by on...

Eff ective management of municipal solid waste (MSW) in Pacifi c developing member countries (DMCs) is diffi cult because of several country-specifi c characteristics. These include limited land area, customary land ownership; environmental fragility; limited human and fi nancial capacity; and in some countries, a heavy reliance on tourism. The challenges mean that selecting technologies that a...

Several Member States of the Agency are considering introducing nuclear power to their energy mix for the first time. Although various technology options are available to these countries, selecting the most suitable nuclear reactor design requires not only a careful understanding of existing designs but also in-depth knowledge of country-specific needs, conditions and other considerations. To m...

the main object of this paper is to find out the impact of economic and institutional factors on export of services in considering the example of oic countries. panel data method as an econometrics approach is used for estimating models. results show that variables such as gdp per capita, the real exchange rate, foreign direct investment, and information infrastructures have positive and signif...

This paper studies the existence for a set of countries of an inflation threshold above which its effect on economic growth is negative, considering the speed of transition from one inflation regime to the other. Using a panel data set of above 120 countries for the period after the Second World War, we apply a panel smooth transition regression (PSTR) model with fixed effects. The estimated th...

Venture capital companies play an important role in the economy of countries and greatly influences economic and employment growth. VC is the provision of capital for companies and entrepreneurs that is prone to leaping and growing value and, of course, a lot of risk. However, the volume of venture capital in our country is far less than the economic capacity. Many of analysts consider having n...

Renewable energy planners in developing countries should be cautious in using analytical tools formulated in developed countries. Traditional energy consumption, economic and demography transitions, high-income inequality, and informal economy are some characteristics of developing countries that may contradict the assumptions of mainstream, widely used analytical tools. In this study, we synth...