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This paper aims to assess the choice of supermarkets for purchasing fresh agricultural products among urban consumers in Ghana.

Likert scale was used to investigate reasons for purchasing agricultural products from supermarkets, while heteroskedastic probit was used to estimate the determinants. Beta regression was used to examine the determinants of the proportion of food expenditure on raw/unprocessed agricultural products.

The principal reasons for purchasing agricultural products from supermarkets are convenience, a guarantee of assorted products, high-quality products and food safety, constant supply of products, conducive shopping environment, excellent customer service and social influence. The probability of purchasing agricultural products from supermarkets is high for consumers who are either males, young, educated, high-income earners or salaried workers. Consumers residing closer to supermarkets have a greater probability of shopping for agricultural products from same. The proportion of food expenditure on unprocessed agricultural products increases with age but decreases with education and distance to local markets.

Few prior studies have investigated supermarket’s surge in developing countries and its connection with consumer food-outlet choice. Unfortunately, little is evident in the extant literature on consumers' choice of supermarkets as purchasing outlets for fresh agricultural products. Hence, this study closes the gap on consumers and fresh agricultural product purchases from supermarkets in Ghana. Results from the study will provide grounding evidence to supermarket owners to adjust their services to meet consumers’ needs and provide relevant information to evolving supermarkets or investors who may venture into the supermarket business on the attributes that influence consumers to use supermarkets as a purchasing outlet.

The purpose of this paper is to evaluate the total-factor energy efficiency (TFEE) in China’s sugar manufacturing industry using firm-level data from 2002/2003 to 2012/2013 crushing seasons, and further explore the determinants of TFEE.

Modified data envelopment analysis is used to measure the TFEE of each sugar mill during the crushing seasons. Then heteroskedastic fractional probit model is applied to estimate the determinants of TFEE because of the bounded nature of TFEE and heteroskedasticity of unbalanced panel.

The results show that throughout the crushing seasons, the average TFEE is 0.57; there are spatial differences of TFEE in Guangxi sugar industry, highest in southern area; the TFEE of foreign-owned sugar mills is larger than that of private-owned and state-owned sugar mills; the larger the enterprise size, the higher the TFEE; private ownership, large size, raw material, safe productivity, total recovery rate as well as technical progress can improve TFEE significantly.

This paper analyzes TFEE using a rich data set at firm level, allowing the existence of firm heterogeneity, as well as being complementary to the study of energy efficiency in China’s sugar industry. Moreover, ownership structure is involved in the determinants of TFEE, which is rarely done in literature. Lastly, heteroskedastic fractional probit model is employed to recognize the bounded nature of TFEE as well as selection bias of unbalanced panel to study the determinants of TFEE.

This paper aims to examine hotel guests’ satisfaction relative to room rates paying attention to the heterogeneity in the scale of satisfaction scores.

This paper studies guests’ post-purchase hotel evaluation using survey data from a sample of 14,879 tourists visiting a Northern Spanish region. This study estimates a Heteroskedastic Ordered Probit model in which both “cognitive” and “emotional” components of satisfaction are modelled. The model allows us to control for heterogeneity in the scale of the latent satisfaction scores.

This paper finds that satisfaction relative to rates (value for money) decreases with expenditure per person and day. Interestingly, this negative relationship mainly holds for those who do not prioritize prices at the time of choosing the hotel. Positive first impressions are positively associated with higher satisfaction. In addition, this study finds that the emotional component of satisfaction increases with hotel quality and hiring a full board, being also greater among women and elderly people.

Instead of using an overall measure of satisfaction, this paper uses one that gathers how the tourist assesses satisfaction in relation to cost (value for money).

The authors assessed the certification of street food retailers in Ghana in terms of awareness, training, willingness to be certified, determinants, agreement with certification requirements and impacts on performance.

Primary data was sourced from 200 street food retailers. Descriptive statistics, Likert scale, mean comparison test, heteroskedastic probit, inverse-probability-weighted regression adjustment (IPWRA), inverse probability weights (IPW) and augmented inverse-probability weighting (AIPW) were applied.

Most uncertified retailers were willing to be certified. Awareness about certification was high. Most of the certified retailers had been trained on certification, while most uncertified retailers had not been trained. Being a female, being educated, being a migrant vendor, possessing experience in retailing, training in certification, trust in the local certification process, the amount spent in preparing food and the number of customers are crucial variables that increase the probability of being certified among street food vendors. Street food retailers agreed to all the requirements for certification. Certification boosts the performance of street food retailers in terms of the number of customers and contracts received. Training on certification is recommended for street food retailers.

The limitation of this study is mainly due to the type of food retailers selected. Street food vending in Ghana is done among those who cook food for selling, those who sell processed products such as drinks and those who sell vegetables and other uncooked agriproducts. Meanwhile, the authors selected unorganised retailers who primarily cook local and regional dishes for sale in this study. Thus, the study did not include organised food retailers such as restaurants. Therefore, generalising the study results for street food vendors should be made with caution.

Several studies have been conducted on street food retailing across the globe on knowledge of food-safety practices, risk practices, bacterial contamination of street retailing food, toxicological hazards of street foods and compliance with technical and hygienic requirements by street food retailers, among others. However, empirical studies on the certification/licensing of street food retailers and its impact have been given little attention. As a result, this study investigates the certification of street food retailers and its impacts on retailers' performance in Ghana.

The positive relationship between household poverty and child labor decisions need not to be generalised across different types of works and geographical regions. This chapter studies this relationship using the 2004 Malawi Integrated Household Survey data. The study attempts to identify the influence of exogenous change in household consumption on child labor decisions by using consumer durable goods as an instrument. These findings show that child labor was most prevalent and intensive in domestic work, but significant negative relationships between household consumption and child labor supply are only found in unpaid market work. These findings support both poverty reduction and awareness campaigns as child labor eradication strategies. Promotion of non-labor intensive income sources also seems to be an attractive policy option.

The authors examine whether or not applicants and recipients of federal disability insurance (DI) inflate their self-assessed health (SAH) problems relative to others. To do this, the authors employ a technique which uses anchoring vignettes. This approach allows them to examine how various cohorts of the population interpret survey questions associated with subjective self-assessments of health. The results of the analysis suggest that DI participants do inflate the severity of a given health problem, but by a small but significant degree. This tendency to exaggerate the severity of disability problems is much more apparent among those with more education (especially those with a college degree). In contrast, racial minorities tend to underestimate severity ratings for a given disability vignette when compared to their white peers.

To address the safety concerns generated by truck crashes occurred in big cities, this paper analyzes the zip code tabulation area (ZCTA)-based truck crash frequency across four temporal intervals – morning (6:00–10:00), mid-day (10:00–15:00), afternoon (15:00–19:00), and night (19:00–6:00) in New York City in 2010. A multivariate conditional autoregressive count model is used to recognize both spatial and temporal dependences. The results prove the presence of spatial and temporal dependencies for truck crashes that occurred in neighboring areas. Built environment attributes such as various types of business establishment density and traffic volume for different types of vehicles, which are important factors to consider for crashes occurred in an urban setting, are also examined in the study.

Institutional bibliometric analyses compare as a rule the performance of different institutions. The purpose of this paper is to use a statistical approach which not only allows a comparison of the citation impact of papers from selected institutions, but also a comparison of the citation impact of the papers of these institutions with all other papers published in a particular time frame.

The study is based on a randomly selected cluster sample (n=4,327,013 articles and reviews from 2000 to 2004), which is drawn from a bibliometric in-house database including Web of Science data. Regression models are used to analyze citation impact scores. Subsequent to the models, average predictions at specific interesting values are calculated to analyze which factors could have an effect on the impact scores-the journal impact factor (JIF), of the journals which published the papers and the number of affiliations given in a paper.

Three anonymous German institutions are compared with one another and with the set of all other papers in the time frame. As an indicator of institutional performance, fractionally counted PP_{top 50%} on the level of individual papers are used. This indicator is a normalized impact score whereas each paper is fractionally assigned to the 50 percent most frequently cited papers within its subject category and publication year. The results show that the JIF and the number of affiliations have a statistically significant effect on the institutional performance.

Fractional regression models are introduced to analyze the fractionally counted PP_{top 50%} on the level of individual papers.

This paper aims to investigate firm‐level interactions between productivity and exporting in Uganda's manufacturing sector.

The paper empirically tested two hypotheses that relate to the dynamic gains from trade and also have tended to dominate the literature; self‐selection and learning‐by‐exporting hypotheses. It employs proxies of self‐selection and learning‐by‐exporting obtained from indices of path dependence to fit maximum likelihood estimates of export behavior.

The results provide support for both hypotheses and it is also found that more experienced exporters reap more productivity gains from learning effects which is in line with the view that knowledge spillovers to exporting firms increase with the level of interaction in the global market place. Thus, learning‐by‐exporting is not a “short term” occurrence which takes place only in the first few years of entry in export markets after which it would fizzle out as a firm's exporting experience increases but rather, it is a cumulative process.

This paper generates a number of insights that can guide policy makers in designing policies to promote firm productivity growth that is an engine of growth in the private sector and by extension, would fuel up overall economic growth and poverty reduction.

Previous studies on exports and growth in Uganda have been basically focused on macro‐data analysis; yet, promoting rapid expansion of manufactured exports may require more than just a good macroeconomic policy environment. This study fills the research gap by relating firm‐level productivity performance to the microeconomic environment in which manufacturing firms operate.

The main goal of this paper is to study empirically the importance of experience of top managers and firms for export performance, having controlled for a number of firm characteristics.

The study is based on the probit model applied to the 2020 edition of the BEEPS firm level survey. The authors analyze firms in 15 EU member and 15 non-member countries.

The results indicate that firm experience can increase the probability of direct exporting, but is not significant for indirect exporting. The results also support the importance of interaction between experience of managers and experience of firms. The authors conclude that only the combination of managerial and firm experience can have a positive and significant effect for direct exporting. This relationship is more pronounced in the case of EU members.

The main limitations of our approach are related to data constraints. These include availability of only cross-sectional data and the limited number of individual characteristics of managers.

The importance of experience for exporting suggests that firms can break into foreign markets by hiring more experienced managers.

Post-communist countries can improve their export performance by hiring more experienced managers that would stimulate direct exports. Moreover, they can also export indirectly through intermediaries.

In contrast to previous studies, the authors used a model proposed by Jørgensen and Schroder (2008) in which the authors endogenized the costs of exporting by linking them to firm and managerial experience. Then, the authors validated empirically the importance of experience for firm export performance, having controlled for the set of individual firm characteristics.