Capital services estimates in Portuguese industries, 1977–2003

This paper presents capital services estimates for 26 Portuguese industries for the 1977–2003 period. The estimation procedure follows an integrated approach under which the flows of capital services are approximated as a proportion of the capital stock converted into standard efficiency units. Our findings suggest a close proximity between the evolution of capital flows and the observed fluctuations of Portuguese macroeconomic growth. TFP growth estimates based on growth accounting reveal, furthermore, a very disappointing performance of the Portuguese economy during the period under study, with an average annual rate of TFP growth of 0.8% being observed. Performance varies across industries, but the bulk of activities show very modest rates of TFP growth.     

When do improved covariance matrix estimators enhance portfolio optimization? An empirical comparative study of nine estimators

The use of improved covariance matrix estimators as an alternative to the sample estimator is considered an important approach for enhancing portfolio optimization. Here we empirically compare the performance of nine improved covariance estimation procedures using daily returns of 90 highly capitalized US stocks for the period 1997–2007. We find that the usefulness of covariance matrix estimators strongly depends on the ratio between the estimation period T and the number of stocks N, on the presence or absence of short selling, and on the performance metric considered. When short selling is allowed, several estimation methods achieve a realized risk that is significantly smaller than that obtained with the sample covariance method. This is particularly true when T/N is close to one. Moreover, many estimators reduce the fraction of negative portfolio weights, while little improvement is achieved in the degree of diversification. On the contrary, when short selling is not allowed and T?>?N, the considered methods are unable to outperform the sample covariance in terms of realized risk, but can give much more diversified portfolios than that obtained with the sample covariance. When T?<?N, the use of the sample covariance matrix and of the pseudo-inverse gives portfolios with very poor performance.     

The Innovative Behavior of Spanish Enterprises and Its Impact on Salaries

Our aim was to analyze the effects of firms' innovative behavior on their employees' salaries in the Spanish manufacturing industry. We found a premium in the wage paid by innovative firms, regardless of size. However, when taking company size into account, we found that the effect of innovations was greater in small-medium enterprises (SME), contrary to what was expected. The inferences of the models estimated suggest that the higher the market concentration the weaker the appropriability regime, especially for SMEs. However, at the same time, a firm's innovations reduce the impact of market concentration on wages, making innovating firms more autonomous than non-innovating ones. Even more, to be able to innovate, firms have to isolate their employees' salaries from the product market. These results hold regardless of firm's size, but have a greater impact on the small-medium group of firms. Finally, our analysis backs the assumption that salaries in both large and small-medium firms are generated by two distinct economic regimes, supporting the proposition that an SME is not simply a scaled-down large firm.     

The ethics of creative accounting some Spanish evidence

Creative accounting involves accountants in making accounting policy choices or manipulating transactions in such a way as to convey a preferred and deliberately chosen impression in the accounts. Although it is regarded as unethical by most observers, a defense of creative accounting can be based on the assumption that users of accounts can identify bias in accounting policy choices and make appropriate adjustments. In this paper we take the example of the Barcelona Football Club where the club management made three key accounting policy choices that resulted in the presentation of a favourable position, and a supporters club presented an alternative report choosing three alternative accounting policies that presented an unfavourable position. We presented each of these financial reports to one of two groups of Spanish bank loan officers: we found that the more favourable set of accounts was significantly more likely to attract a positive response to a loan request. This result undermines the validity of defending creative accounting based on the argument that accounts users can identify manipulation.     

What Would Normalisation of Economic Relations Between Mashrek Countries,Turkey and Israel Imply?

This article examines the potential for economic cooperation among Mashrek countries, Turkey and Israel in the fields of trade in goods and services both separately and across‐field. It first describes the macroeconomic features of the region and then estimates the overall potential for inter‐industry trade in goods by estimating gravity equations for each country separately and the potential for intra‐industry trade using Grubel‐Lloyd indices. The article also examines the potential for trade in specific services, namely information and computer technology, transport, financial and health services.     

Labor market institutions and inflation volatility in the euro area

Despite having had the same currency for many years, EMU countries still have quite different inflation dynamics. In this paper we explore one possible reason: country specific labor market institutions, giving rise to different inflation volatilities. When unemployment insurance schemes differ, as they do in EMU, reservation wages react differently in each country to area-wide shocks. This implies that real marginal costs and inflation also react differently. We report evidence for EMU countries supporting the existence of a cross-country link over the cycle between labor market structures on the one side and real wages and inflation on the other. We then build a DSGE model that replicates the data evidence. The inflation volatility differentials produced by asymmetric labor markets generate welfare losses at the currency area level of approximately 0.3% of steady state consumption.     

Applications of parameters of shape to statistical distributions

Several new parameters characterizing the shape of statistical distributions are discussed. These parameters have earlier been considered for characterization of the shape of territories. By means of these parameters we describe general spread and spread along the axes, as well as asymmetry, of univariate theoretical and empirical distributions. General formulas for the parameters are given, and the particular formulas for the most of the common theoretical distributions are also listed. Some numerical values are tabulated, to illustrate their usefulness. Affine transformations are considered, and many applications and extensions are hinted upon.     

The Relationship Between Firm Size and Innovation Activity: A Double Decision Approach†

The main purpose of this paper is to analyse the relationship between firm size and innovation activity using Spanish data at firm level corresponding to the manufacturing sector for the period 1990-93. This exercise is different to previous applications because we allow for different size effects in the decision to innovate and the innovation count equation, in the context of a double-hurdle approach. Several tests confirm the hurdle negbin model. We find that firm size is a relevant factor, although size effects are different in both decisions. A robust result from the different specifications estimated is the rejection of the Gilbert and Newbery hypotheses. We find out that the behaviour of firm size is neither linear in the decision nor in thc count equation. We also provide additional, and sometimes different, evidence to previous Spanish studies on R&D.     

Size,R&D productivity and Decision Styles

We extend the size–innovation debate by incorporating decision-making style as a relevant factor in the innovation process. We propose that the size of firms affects the scale and quality of product innovation through the adoption of different decision-making styles. Using the literature on cognition, we conceptualize decision-making style as the degree to which firms rely on analytical information for decision making during the R&D process. Using longitudinal data of Spanish firms, we show that, as firms increase in size, they rely more extensively on analytical decision tools for the innovation activity. Additionally, we show that the size of firms is negatively related to product innovation productivity in terms of scale and positively related to the quality, and that these relationships are mediated by firms’ reliance on analytical decision-making style. We discuss theoretical and managerial implications for innovation research and practice.     

Tax incentives… or subsidies for business R&D?

We study whether firms’ actual use of R&D subsidies and tax incentives is correlated with financing constraints -internal and external- and appropriability difficulties and investigate whether both tools are substitutes. We compare the use of both policies by SMEs and by large firms and find significant differences both across instruments and across firm size. For SMEs, financing constraints are negatively correlated with the use of tax of credits, while they are positively associated with the likelihood of receiving a subsidy. The use of legal methods to protect intellectual property is positively correlated with the probability of using tax incentives, but not with the use of subsidies. For large firms external financing constraints are correlated with instrument use, but results regarding appropriability are ambiguous. Our findings suggest that (1) direct funding and tax credits are not perfect substitutes in terms of their ability to reach firms experiencing barriers associated to market failures; (2) one size may not fit all in innovation policy when the type or intensity of market failure differs across firm size, and (3) subsidies may be better suited than tax credits to encourage firms, especially young knowledge-based firms, to start doing R&D.