Search results for "InVEST"
showing 10 items of 2596 documents
Minimising value-at-risk in a portfolio optimisation problem using a multi-objective genetic algorithm
2011
[EN] In this paper, we develop a general framework for market risk optimisation that focuses on VaR. The reason for this choice is the complexity and problems associated with risk return optimisation (non-convex and non-differential objective function). Our purpose is to obtain VaR efficient frontiers using a multi-objective genetic algorithm (GA) and to show the potential utility of the algorithm to obtain efficient portfolios when the risk measure does not allow calculating an optimal solution. Furthermore, we measure differences between VaR efficient frontiers and variance efficient frontiers in VaR-return space and we evaluate out-sample capacity of portfolios on both bullish and bearis…
The Export-Productivity Link in Brazilian Manufacturing Firms
2015
This paper explores the link between exports and total factor productivity in Brazilian manufacturing firms over the period 2000–08. The Brazilian experience is instructive, as it is a case of an economy that expanded aggregate exports significantly, but with stagnant aggregate growth in total factor productivity. The paper first estimates firm-level total factor productivity under alternative assumptions (exogenous and endogenous law of motion for productivity) following a GMM procedure. In turn, the analysis uses stochastic dominance techniques to assess whether the ex ante most productive firms are those that start exporting (self-selection hypothesis). Finally, the paper tests whether e…
Determinants of translation-firm survival: A fuzzy set analysis
2016
Abstract This article presents an empirical analysis of determinants of the survival of firm or self-employed workers in the Spanish translation sector. In the midst of a global downturn, the survival of firm and self-employed workers is a key factor for the progress of the economy and for a better and more stable future. The analysis explores the combination of variables including human capital, contingency and economic investment that potentially drive translation and interpreting firms to survive. The study performs a comparative qualitative analysis using a fs/QCA methodology and identify seven combinations of causes that lead to the outcome. The results show that different causal paths…
Foreign institutional investors and dividend policy: Evidence from China
2017
Abstract This study examines whether foreign institutional investment influences firms’ dividend policies. Using data from all domestically listed nonfinancial firms in China during the period of 2003–2013, we find that foreign shareholding influences dividend decisions and vice versa. Furthermore, changes in dividend payments over time positively affect subsequent changes in foreign shareholding, but the opposite is not true. Our study indicates that foreign institutional investors do not change firms’ future dividend payments once they have made their investment choices in China. Moreover, they self-select into Chinese firms that pay high dividends. Our evidence suggests that in an instit…
A bootstrap approach to analyse productivity growth in European banking
2010
This paper analyses productivity growth for European banks over the 1995–2001 period. In contrast to previous literature, our study covers the majority of current European Union (EU) countries—all except Greece and those joining the EU in 2004. We also use resampling methods so as to gain statistical precision, which turns out to be especially important due to the limitations of the database. In order to be consistent, we use additional nonparametric methods to disentangle why productivity differentials might exist. Results show that productivity growth has occurred in most countries, mainly due to improvements in production possibilities. The bootstrap analysis yields further evidence give…
Why retail investors traded equity during the pandemic? An application of artificial neural networks to examine behavioral biases
2021
Behavioral biases are known to influence the investment decisions of retail investors. Indeed, extant research has revealed interesting findings in this regard. However, the literature on the impact of these biases on millennials' trading activity, particularly during a health crisis like the COVID-19 pandemic, as well as the equity recommendation intentions of such investors, is limited. The present study addressed these gaps by investigating the influence of eight behavioral biases: overconfidence and self-attribution, over-optimism, hindsight, representativeness, anchoring, loss aversion, mental accounting, and herding on the trading activity and recommendation intentions of millennials …
On the evolution of monopoly pricing in Internet-assisted search markets
2014
This study examines the evolution of prices in markets with Internet price-comparison search engines. The empirical study analyzes laboratory data of prices available to informed consumers, for two industry sizes and two conditions on the sample (complete and incomplete). Distributions are typically bimodal. One of the two modes of distribution, corresponding to monopoly pricing, tends to attract such pricing strategies increasingly over time. The second one, corresponding to interior pricing, follows a decreasing trend. Monopoly pricing can serve as a means of insurance against more competitive (but riskier) behavior. In fact, experimental subjects who initially earn low profits due to int…
The role of digital channels in industrial marketing communications
2015
Purpose – The purpose of this research is to investigate industrial marketing communications tools and the role of digital channels. The research draws from the literature on industrial marketing communications to examine its goals and intended utilization in industrial firms. Design/methodology/approach – An empirical multiple case study conducted among six industrial firms examines the current state of digital marketing communications (DMC). Findings – The study gleans three research insights. First, although DMC is one of the most important industrial marketing communication tools, firms have not yet used it to its full potential. Second, firms use DMC to enhance customer relationship c…
Sponsored consumer-generated advertising in the digital era: what prompts individuals to generate video ads, and what creative strategies do they ado…
2021
This study investigates individuals’ motivations to create sponsored video ads in response to corporate online advertising competitions, and the creative strategies they employ when so doing. The findings from two studies that combined qualitative (42 semi-structured interviews and netnography) and quantitative (content analysis of 1,102 ads) research methods showed that individuals are motivated to produce sponsored video advertising by six factors: learning, enjoyment, self-expression, remuneration, recognition and influencing others. In turn, these motivations can be categorised as intrinsic, extrinsic, rational and affective, leading to a typology of four advertising creators. It was fo…
The determinants of conversion rates in SME e-commerce websites
2018
Abstract Web retailers invest significant resources to improve the proportion of website visitors that make a purchase, also known as the conversion rate. Improving this rate is particularly important to SMEs that have traditionally lagged behind larger firms as they have found it difficult to justify the significant investment involved in website development against the historical low returns associated with an online sales channel. Identifying methods that increase conversion rates reduces these perceived barriers and increases effective SME participation in the growing e-commerce sector. This paper uses 1184 observations from 6 SME websites to identify and analyse the factors, or combina…