Nowcasting norwegian GDP: the role of asset prices in a small open economy

This article finds that asset prices on Oslo Stock Exchange is the single most important block of data to improve estimates of current quarter GDP in Norway. We use an approximate dynamic factor model that is able to handle new information as it is released, thus the marginal impact on mean square nowcasting error can be studied for a large number of variables. We use a panel of 148 non-synchronous variables. The high informational content in asset prices is explained by reference to the small size of companies on Oslo Stock Exchange and the small and open nature of the Norwegian economy.     

Cost-Optimal Scale of Child Care Institutions

In this paper we explore the scale properties in the operation of child care institutions. The main issue is whether or not there exists a technically optimal scale of operation. Our results, based on a homothetic production function model and data from a sample of Norwegian child care institutions, suggest that a technically optimal scale does exist. This confirms some of the results recently obtained for US child care institutions.     

ON THE CONSISTENCY OF THE LUCAS PRICING FORMULA

In order to find the real market value of an asset in an exchange economy, one would typically apply the Lucas formula, developed in a discrete time framework. This theory has also been extended to continuous time models, in which case the same pricing formula has been universally applied.
While the discrete time theory is rather transparent, there has been some confusion regarding the continuous time analogue. In particular, the continuous time pricing formula must contain a certain type of a square covariance term that does not readily follow from the discrete time formulation. As a result, this term has sometimes been missing in situations where it should have been included.
In this paper, we reformulate the discrete time theory in such a way that this covariance term does not come as a mystery in the continuous time version.
In most real life situations dividends are paid out in lump sums, not in rates. This leads to a discontinuous model, and adding a continuous time framework, it appears that our framework is a most natural one in finance.
Finally, the Gordon growth formula is extended from its deterministic origin, to the present model of uncertainty, and it is indicated how this can be used to to possibly shed some light on the volatility puzzle.     

Gains and structural effects of exploiting scale-economies in Norwegian dairy production

In this paper, we present calculations of the economic gains in terms of reduced costs by exploiting scale‐economies in dairy production in Norway, and the effect this would have had on the number of farms. We also explore whether or not optimal scale and unexploited scale‐economies change over time due to scale‐augmenting technical change. The analysis is based on homothetic cost functions estimated by means of data for individual dairy farms for the period 1972–1996. For 1972, we find that, by full exploitation of scale‐economies, the costs could have been reduced by almost 40%, while the number of farms would have been reduced by more than 85%. The number of small farms has been substantially reduced in the period considered. This fact, combined with small scale‐augmenting technical change, implies that the gains and structural effects of exploiting scale‐economies have decreased over time. In 1996, costs could have been reduced by close to 30% by full exploitation of scale‐economies, while the number of farms would have been reduced by slightly more than 70%. Thus, both gains and structural effects are substantially less than in 1972. Nevertheless, the calculated gains for 1996 make almost 5 billion NOK. This corresponds almost exactly to the total public support to the dairy farms in 1996. The unexploited scale‐economies are largely due to the agricultural policy. Thus, a substantial share of the same can be considered as part of the‘price’ the Norwegian society has to pay for this policy. In addition, there are likely to be large hidden costs of this policy due in particular to the quota system and other direct production regulations. They imply that technical innovations and other efficiency‐improving investments requiring increased production to be profitable are not carried out. This is the more likely explanation for the extremely poor efficiency development in Norwegian dairy production in the period studied.     

The role of quality standards in innovative service companies: An empirical analysis for Germany

Proceeding from theoretical hypotheses, driving forces for the introduction of the ISO 9000ff series in innovative service companies are analysed. Based on the European Community Innovation Survey (CIS), a probit model is estimated with different explanatory variables based on a sample of innovative German service companies. The first analysis of the role of the quality standard ISO 9000ff in German innovative service companies, based on general hypotheses concerning the role of quality standards, produced elucidating results. Besides sector- and size-specific differences, the use of “risky” technologies positively influences the probability of introducing ISO 9000ff. This quality standard has another twofold impact: First, as expected, it is a quality seal for the customers of the service company, especially in markets with homogeneous products and average qualities. Second, the introduction of ISO 9000ff has impacts on the internal processes of the service companies. In contrast to a conventional product standard, it supports the management in being flexible, especially towards the preferences of the customers and in reaching project deadlines. However, the introduction may also increase the pressure on the employees who are therefore evidently more reluctant about its introduction. Consequently, the empirical results underpin most of the theoretical hypotheses on the role of quality standards in service companies.     

Foreign Direct Investment,Imports and Innovations in the Service Industry

The paper analyses for the first time empirically the impact of foreign competition due to inward foreign direct investment and imports on the innovation activities using data of German service firms. Based on the hypothesis that foreign competition has a disciplining effect on domestic markets derived from the manufacturing sector, a positive impact can be expected on innovation in the service sector, while other theoretical considerations do not absolutely support this optimistic view. In the empirical analysis, variants of two probit models are estimated for a sample of 2,019 service firms to explain their product and process innovation activities. The results show that both foreign direct investment and imports have highly significant positive effects on product and process innovations. Vice versa, the export and foreign production activities of domestic firms support innovations, too.     

The values of insurance companies under different uncertain portfolios

The value of an insurance company mainly depends on the premiums received in each underwriting period, the probability distribution of the accumulated claims against the company, the equity capital, and the risk-adjusted rate of return determined by the market. We analyze how the value of the company is affected by marginal changes in the underlying determinants, when there is a regulatory requirement on equity capital. The major factor we are interested in is the claims against the company in each underwriting period, which we represent by a stationary stochastic process. The existing orders for partially ranking risks do not suffice for our purpose, and new conditions are found on the risks facing the companies, for the successful ranking of the company values.     

Unemployment hysteresis - macro evidence from 16 OECD countries

This paper investigates empirically the presence ofunemployment hysteresis in 16 OECD countries, applying aggregate quarterly unemployment rates covering the past 25 years. Alternative test procedures are discussed and employed, posing both stationarity and hysteresis as null hypotheses. The results suggest that hysteresis effects are highly significant in Australia and Canada, and to a lesser extent also significant in most European countries and in Japan. Only in the USA, the presence of unemployment hysteresis is strongly and consistently rejected.Without attributing to them opinions or errors in the paper, I wish to thank Steinar Strøm, Ragnar Nymoen, Arvid Raknerud, Anders Rygh Swensen, Jeremy Smith and two referees for helpful comments.     

Option pricing under fast-varying and rough stochastic volatility

Recent empirical studies suggest that the volatilities associated with financial time series exhibit short-range correlations. This entails that the volatility process is very rough and its autocorrelation exhibits sharp decay at the origin. Another classic stylistic feature often assumed for the volatility is that it is mean reverting. In this paper it is shown that the price impact of a rapidly mean reverting rough volatility model coincides with that associated with fast mean reverting Markov stochastic volatility models. This reconciles the empirical observation of rough volatility paths with the good fit of the implied volatility surface to models of fast mean reverting Markov volatilities. Moreover, the result conforms with recent numerical results regarding rough stochastic volatility models. It extends the scope of models for which the asymptotic results of fast mean reverting Markov volatilities are valid. The paper concludes with a general discussion of fractional volatility asymptotics and their interrelation. The regimes discussed there include fast and slow volatility factors with strong or small volatility fluctuations and with the limits not commuting in general. The notion of a characteristic term structure exponent is introduced, this exponent governs the implied volatility term structure in the various asymptotic regimes.