Abstract Most soybean farming in Indonesia is still performed conventionally. Farmers are less interested cultivating soybeans because the production yields relatively small. This research aims to determine factors influencing production, inefficiency of soybean, and technical efficiency (TE) economic (EE) level farming. Primary data were collected using a survey method farmers paddy field area...

Multiobjective optimization deals with finding and evaluating a number of trade-off optimal solutions. Evolutionary multiobjective optimization (EMO), started in early nineties, is now a fast-growing field of research and application in evolutionary computation. Numerous different algorithms have been developed to address computationally complex problems. Many of these algorithms attempt to fin...

The problem of interest in this paper is the optimization of portfolios of real and contractual assets, including derivative instruments, subject to a Value-at-Risk (VaR) constraint. The focus in this paper is on translating VaR definitions for one period of time, say a year, to decisions on shorter periods of time, say a week or a month. Thus, if a VaR constraint is imposed on annual cash flow...

How should countries cooperate in setting fiscal and trade policies when government expenditures must be financed with distorting taxes? We show that even if cannot make explicit transfers to each other, every point on the Pareto frontier is production efficient, so international capital flows effectively free. Trade agreements supplemented policy agreements. Residence-based income tax systems ...

This report investigates 2nd Fall and 3rd Fall retention rates by Expected Family Contribution (EFC) for recent full-time, first-time (FTFT) freshman cohorts. This report serves as an update to, and extension of, prior retention by EFC reports that focused on 2 Fall Retention as the sole dependent variable. Sub-groups of interest including First Generation students, minority ethnicity students,...

This paper proposes the PROMETHEE II based multicriteria approach for cryptocurrency portfolio selection. Such an allows considering a number of variables important cryptocurrencies rather than limiting them to commonly employed return and risk. The proposed multiobjective decision making model gives best daily return, standard deviation, value-at-risk, conditional volume, market capitalization...

The existence of mean-variance efficient positive portfolios – portfolios with no negative weights – is a key requirement for equilibrium in the Capital Asset Pricing Model (CAPM). Brennan and Lo (2010) define an “impossible frontier” as a frontier on which all portfolios have at least one negative weight. They prove that for randomly drawn covariance matrices the probability of obtaining an im...

In a sustained development scenario it is often the case that an investment is to be made over time in facilities that generate benefits. The benefits result from joint synergies between the facilities expressed as positive utilities specific to some subsets of facilities. As incremental budgets to finance fixed facility costs become available over time, additional facilities can be opened. The...

Investment in stock market involves many decision rules and variables; hence investors are increasingly relying on ratings provided by rating agencies to guide their stock selections. However, do these stocks ratings have information value? Are rating agencies’ ratings valid? We research these questions by analyzing the performance of rating agencies. This study provides empirical evidence on t...