Trade and Profitability: Is there an export premium? Evidence from Italian manufacturing firms

Using firm level data this study investigates the relation between export activity and firm's profitability. The paper shows that, contrary to other performance indicators such as productivity, exporting activity is not systematically associated to higher firm's profitability. This is shown both by means of non-parametric methods and, with an approach that is more standard within the empirical trade literature, by regression techniques that try to identify an "export premium".export premium; productivity; profitability

Technology as Problem-Solving Procedures and Technology as Input-Output Relations: Some Perspectives on the Theory of Production

In this work, inspired by Winter [2006], in fact of vintage 1968, we discuss the relation between three dierent levels of analysis of technologies, namely as (i) bodies of problem-solving knowledge, (ii) organizational procedures, and (iii) input-output relations. We begin by arguing that the "primitive" levels of investigation, "where the action is", are those which concern knowledge and organizational procedures, while in most respects the I/O representation is just an ex post, derived, one. Next, we outline what we consider to be important advances in the understanding of productive knowledge and of the nature and behaviors of business organizations which to a good extent embody such a knowledge. Finally, we explore some implications of such "procedural" view of technologies in terms of input-output relations (of which standard production functions are a particular instantiation). We do that with the help of some pieces of evidence, drawing both upon incumbent literature and our own elaboration on micro longitudinal data on the Italian industry.Theory of Production, Organizational Routines, Problem-solving Knowledge, Production Function, Micro-heterogeneity

ICT access in Latin America. evidence from household level

The diffusion of Information and Communication Technologies (ICTs) is becoming a central policy issue for developing countries, being identified by international policy-makers and scholars as an important driver of knowledge, innovation and economic growth. We analyze ICT access patterns in seven Latin American countries. In particular, we study the socio-economic determinants of the presence of computers and Internet connection at household level. Descriptive data show that ICT diffusion is concentrated in narrowly defined segments of income and educational groups in each country. Across countries, there is also evidence that the lower is the ICT diffusion, the higher is the inequality of that diffusion. Econometrically, we model the probability that a household has or has not adopted computer technologies and Internet access. The results confirm that variables such as income, education and rural/urban areas are key determinants of ICT diffusion. Additionally, there is evidence of geographical network effects and complementarities between Internet uses at different locations.ICT Access, Sample selection, Latin America

Wage structure in Italian Manufacturing firms

This paper jointly considers some pieces of evidence regarding peculiarities of industries' structure which are often separately addressed. Italian industrial sectors are known to be characterized by a high proportion of small enterprises that suffers from 'constraints to growth'. We look at the interplay of variables accounting for size, productivity and labor cost, and assess the relevance of labor force structure in determining the structure of cost for wage. We start by exploring the firm size-wage effect in Italian manufacturing sectors and investigate the extent to which such a trend is offset by a positive and counterbalancing relation linking together productivity and size. We investigate how size contributes to the wage differential within a firm on the earnings of distinct categories of employees. The empirical findings we present reveal that labor force structure matters in determining the wage cost structure of firms.Cost of labor; Productivity; Wage-size effect

Energy, Development, and the Environment: An Appraisal Three Decades After the "Limits to Growth" Debate

This work builds upon some long-term secular regularities concerning the relation between consumption of energy, technological progress and economic growth and reassesses the old question raised around forty years ago in the "limits to growth" discussion (Meadows et al. [1972]), namely are the current patterns of development and in particular the current patterns of energy use environmentally sustainable? The questions we shall address are the following. First, the environmental sustainability of patterns of energy consumption that for long have implied the notion of the environment as a free good, without any negative social externalities and even less so any environmental threat. Second, the importance - and limits - of relative price changes with respect to the dynamics of consumption of energy. Third, the role of fundamental discontinuities between different "technological paradigms".Energy Consumption, Emissions, Sustainability

Social capital and Growth in Brazilian Municipalities

According to the modern theory of social capital (see Coleman (1990), Putnam (1993), Fukuyama (1995)), widespread trust would influence the economic performances of a country through a) reduction of transactional costs (monitoring and preventive activities to protect themselves from being exploited in economic transactions) and legal disputes; b) higher percentage of time devoted to innovation in new products or processes; c) higher reliability of formal institutions like the government and the central bank which implies that people can adopt more appropriate horizons in making investment decisions and choose production technologies that are optimal over the long, rather than short, run; d) a stronger social cohesion due to the sharing of ethical norms which induces cooperative behaviours and organisational innovations. On the basis of these theories a large number of empirical contributions which confirm the existence of a positive relation between growth, efficiency and the level of trust has been produced. Following the seminal work by Knack et al. (ibidem), we try to explain growth in Brazil over the period 2000-2003 using indicators of social capital. We develop our analysis at the most detailed geographical level, considering all 5507 municipalities. This choice is motivated by the great heterogeneity inside every country in terms of growth rate. While we observe homogeneity in some countries, like Sergipe, in other countries, like Sao Paulo, we have huge differences. This forces us to consider the municipalities as unit of observation; otherwise the country level would force us to loose all the heterogeneity. In order to obtain good measures of social capital, we start from a set of objective measure, and then analyse then with factor component analysis. We find a robust evidence of the positive effect of social capital on growth rates of income per capita.DYNREG15

Learning-to-Learn Stochastic Gradient Descent with Biased Regularization

We study the problem of learning-to-learn: inferring a learning algorithm that works well on tasks sampled from an unknown distribution. As class of algorithms we consider Stochastic Gradient Descent on the true risk regularized by the square euclidean distance to a bias vector. We present an average excess risk bound for such a learning algorithm. This result quantifies the potential benefit of using a bias vector with respect to the unbiased case. We then address the problem of estimating the bias from a sequence of tasks. We propose a meta-algorithm which incrementally updates the bias, as new tasks are observed. The low space and time complexity of this approach makes it appealing in practice. We provide guarantees on the learning ability of the meta-algorithm. A key feature of our results is that, when the number of tasks grows and their variance is relatively small, our learning-to-learn approach has a significant advantage over learning each task in isolation by Stochastic Gradient Descent without a bias term. We report on numerical experiments which demonstrate the effectiveness of our approach.Comment: 37 pages, 8 figure

Characterizing the Production Process: A Disaggregated Analysis of Italian Manufacturing Firms

This paper provides a description of the production process by comparing different frameworks in which to analyze the relations between inputs and output. The analysis is performed on a representative sample of Italian manufacturing firms. We employ both parametric and non-parametric analysis. The last allows to detect presence of heterogeneity in the way the production is carried out within each sector. We review some traditional issues in the econometrics of production function estimation and explain how some of them can be solved exploiting the cross-sectional time-series nature of data. Results of the econometric analysis show that coefficients estimates tend to be robust with respect to different models employed. Analysis of levels of labor productivity confirms presence of significant intra-sector heterogeneity which persists over time.Input and output relation, Panel data, Returns to scale .

Intermediaries in International Trade: Direct versus indirect modes of export

This paper examines the factors that give rise to intermediaries in exporting and explores the implications for trade volumes. Export intermediaries such as wholesalers serve different markets and export different products than manufacturing exporters. In particular, high market-specific fixed costs of exporting, the (lack of) quality of the general contracting environment and product-specific factors play important roles in explaining the existence of export intermediaries. These underlying differences between direct and intermediary exporters have important consequences for trade flows. The ability of export intermediaries to overcome country and product fixed costs means that they can more easily respond along the extensive margin to external shocks. Intermediaries and direct exporters respond differently to exchange rate fluctuations both in terms of the total value of shipments and the number of products exported as well as in terms of prices and quantities. Aggregate exports to destinations with high shares of indirect exports are much less responsive to changes in the real exchange rate than are exports to countries served primarily by direct exporters.