Accounting for Net Entry into Greek Manufacturing by Establishments of Varying Size

Adopting the view that size matters in understanding entry (exit) patterns, this research explores the nature and causes of net entry patterns of various size-defined groups of establishments in the case of a less industrialised country – Greece. The hypothesis to be tested is that the determinants of entry are not independent of firm size. Throughout this paper the analysis has had to confront difficulties arising from the use of net entry rates defined at the size class level. The degree of size disaggregation used in this paper is considerably finer than used before. Five employment-defined size classes have been used instead of sliding cut-off points discriminating between small and large firms. Unlike other research using pooled models to explain variation in entry (exit) rates across industries, the data used here are characterised by the absence of significant industry-specific systematic variation. Overall, the results obtained in this paper indicate that there is a gradation in the responses of different size classes to stimuli defined at the industry level. Evidence is offered that small firms are different in that they manage to overcome entry barriers, perhaps adopting different survival strategies, and that large firms are well aware of market conditions and are in an advantageous position to overcome many of the problems imposed by entry barriers. Size classes in the middle of the size class distribution offer a rather mixed result due to size-related advantages and disadvantages.     

How important is the term structure in implied volatility surface modeling? Evidence from foreign exchange options

We claim that previously proposed parametric specifications that linearly approximate the term structure of the implied volatility surface (IVS) in option prices fail to capture important information regarding the expectations of market participants. This paper proposes a parametric specification for describing the IVS that allows flexible modeling of the term structure through a Nelson and Siegel (1987) factorization, recently proposed by Diebold and Li (2006) in the context of yield curve modeling. The specification is tested on implied volatilities from the over-the-counter foreign exchange options market, where contracts with long expiries are actively traded and thus the term structure dimension of the surface should be very important. We first show that the proposed volatility specification can consistently and remarkably improve our ability to describe the surface on any given day. We then establish the economic relevance of the incremental information captured by our proposed specification by showing that it can produce more accurate forecasts of implied volatility that can support long-term profitable trading strategies in the absence of transaction costs.     

Are Full Employment and Social Cohesion Possible Under Financialization?

Unemployment and unequal income distribution were singled out by J.M. Keynes, in the General Theory, as major faults of capitalist economies. This paper argues that there is a negative relationship between financialization and unemployment. In particular, we develop a simple Post Keyneian/Kaleckian model and explore distribution as well as institutional channels through which financialization might have negatively affected the employment performance of capitalist economies, undermining the social cohesion and egalitarian development. Furthermore, we argue that in the face of financialization full employment is likely to be attainable under the institutionalization of an Employer of Last Resort (hereafter ELR) policy strategy.     

Net entry behaviour in Greek manufacturing: consumer, intermediate and capital goods industries

This research explores the nature and causes of net entry of firms in three groups of Greek manufacturing industries–consumer, intermediate and capital goods. The research questions whether or not the determinants of net entry rates across sectors are different. Econometric analyses reveal that, indeed, there are significant differences in the determinants of net entry rates across industry groups, but also there is strong within-group correlation across sectors.     

Exchange Rates and Stock Prices in the MENA Countries: What Role for Oil?

This paper considers the linkage between stock prices and exchange rates in four MENA (Middle East and North Africa) emerging markets. In contrast to the existing evidence that uses a global market index to uncover such a relationship it is found that for the sample countries oil prices emerge as the dominant factor in the above relationship. The paper considers the presence of regime shifts and evidence is found of cointegration only for the period following the 1999 oil price shock. Readjustment towards equilibrium in each stock market occurs via oil price changes. Finally, a number of robustness checks are performed and persistence profiles produced.     

Structural change in the forward discount: Implications for the forward rate unbiasedness hypothesis

It is a well-accepted empirical result that forward exchange rate unbiasedness is rejected in tests using the “differences regression” of the change in the logarithm of the spot exchange rate on the forward discount. We model the forward discount as an AR(1) process and argue that its persistence is exaggerated due to the presence of structural breaks. We show using a stochastic multiple break model that the forward discount persistence is substantially less if one allows for multiple structural breaks in the mean of the process. We argue that these breaks could be identified as monetary shocks to the central bank's reaction function. Using Monte Carlo simulations, we show that if we do not account for structural breaks that are present in the forward discount process, the forward discount coefficient in the “differences regression” is severely biased downward, away from its true value of 1.     

Collaborative Economy: Market Design and Basic Regulatory Principles

The rise of the collaborative economy platforms reveals that policymakers need to start thinking about how to introduce flexibility in the provision of services in these formal relationships with adequate protection for all of the involved parties.     

Predictable dynamics in implied volatility surfaces from OTC currency options

Recent empirical studies report predictable dynamics in the volatility surfaces that are implied by observed index option prices, such as those prescribed by general equilibrium models. Using an extensive data set from the over-the-counter options market, we document similar predictability in the factors that capture the daily variation of surfaces implied by options on 25 different foreign exchange rates. We proceed to demonstrate that simple vector autoregressive specifications for the factors can help produce accurate out-of-sample forecasts of the systematic component of the surface at short horizons. Profitable delta-hedged positions can be set up based on these forecasts; however, profits disappear when typical transaction costs are taken into account and when trading rules on wide segments of the surface are sought.     

COMMON STOCHASTIC TRENDS AMONG THE CYPRUS STOCK EXCHANGE AND THE ASE,LSE AND NYSE

Common stochastic trends among major international stock price indices have been an intensively analysed issue mainly as a result of the 1987 stock market crash and the need for policy coordination in financial markets. This paper investigates the existence of common stochastic trends among an emerging equity market, the Cyprus Stock Exchange, and three mature equity markets, namely the Athens Stock Exchange (ASE), the London Stock Exchange (LSE) and the New York Stock Exchange (NYSE).     

Nonlinear Alternatives to Unit Root Tests and Public Finances Sustainability: Some Evidence from Latin American and Caribbean Countries*

We analyse the sustainability of government debt for Latin American and Caribbean countries employing unit‐root tests with nonlinear alternative hypotheses and examine the robustness of our results against those from unit‐root tests with breaks and threshold nonlinearities. We show that, in general support for sustainability substantially improves when nonlinear mean reversion is taken into account. We also find that the results obtained from applying various tests with nonlinear alternatives, although broadly consistent, are not identical. This suggests that reliance on a single unit‐root test for assessing fiscal policy sustainability may be misleading.