Survival of the hippest: life at the top of the hot 100

We analyse the survival characteristics of recordings that reached the number one spot on the US popular music charts over the period 1955 to 2003. Our results show that there has been a statistically significant change in the time spent at number one since ‘album cuts’ were included in the compilation of Billboard?'s Hot 100. Survival time is significantly improved if the recording is by a female solo artist, or if it is an instrumental tune. We also find a significant ‘Elvis effect’.

‘I’ll never be a saint, it's true. I’m too busy surviving!’ (Madonna, 1994 Madonna. 1994. “Survival”. In Bedtime Stories Album, Hollywood, CA: Warner Brothers Records.  [Google Scholar])     

Keynes vs. the Post Keynesians on the Principle of Effective Demand *

Abstract

The American Post Keynesians – those who attach importance to the capital ‘P’ and the absence of a hyphen between ‘post’ and ‘Keynesian’– claim to be Keynes' most literal interpreters or the ‘truest’ Keynesians (Holt et al. 1998 Holt, R. P.F., Rosser, J. B. Jr. and Wray, L. R. 1998. Paul Davidson's Economics Jerome Levy Economics Institute Working Paper no. 251. Blithewood, NY (www.levy.org) [Google Scholar]: 17). This paper compares the Post Keynesian interpretation of the Principle of Effective Demand, i.e. the D/Z-model, with Keynes' own presentation in chapter 3 of the General Theory– and finds substantial differences. A re-interpretation of the D/Z-model is offered that would bring it into line with chapter 3.     

The Alchemy of the Can Opener: How an Austrian Economist Found Himself Supporting Dictatorial Imposition of a Liberal Order

Why would Hayek, the great critic of ‘rational constructivism’ and defender of spontaneous orders, think a transitional dictatorship could work? Here I attempt to dissect the alchemy of ‘turning a constitution into a can opener’ as Farrant &; McPhail (2014 Farrant, A., &; McPhail, E. (2014) Can a Dictator Turn a Constitution into a Can-opener: F. A. Hayek and the Alchemy of Transitional Dictatorship in Chile, Review of Political Economy, 26(3), pp. 331–348.[Taylor &; Francis Online] , [Google Scholar]) put it. Hayek argues against the imposition by an external source of order upon a society. He stresses the importance of an evolving culture and tradition, noting that they should be spontaneous orders not command systems, and that the culture of a society must be accepting and supportive of its institutions. Sometimes the culture is more important than the formal institutions of a society for efficiency. So why would Hayek argue that a transitional dictator could impose a constitution upon the people? It will be argued here that if Hayek had pursued the theoretical line set out in his Constitution of Liberty, he might have responded to the situation in Chile differently.     

Beveridge's analysis of unemployment in 1909: the reserve of labour

Abstract

The aim of this paper is to provide a rational reconstruction of Beveridge's theory of unemployment published in 1909. First and foremost, it shows that his theory of unemployment is coherent – what Beveridge refers to as ‘the reserve of labour’ represents ‘unemployment’ as a whole; unemployment is due to the imperfection of the labour market and associated friction and the organisation of the labour market is necessary. Second, it suggests that as early as 1909, a negative relationship already existed between unemployment and job vacancies and that the segmentation of the labour market and imperfect information are key factors of friction. The first part of the paper provides a reconstruction of Beveridge's theory of the reserve of labour (1909) including causes and factors of unemployment and unemployment policies. The second part shows that certain founding principles of the ‘Beveridge curve’ (Beveridge 1944 Beveridge, W. H. 1944 [1953]. Full Employment in a Free Society, London: George Allen and Unwin.  [Google Scholar] [1953]) were already to be found in his 1909 book and that links can be established between Beveridge (1909 Beveridge, W. H. 1909. Unemployment: A Problem of Industry, London: Longmans, Green and Co.  [Google Scholar]), Phelps (1970 Phelps, E. S. 1970. The new microeconomic in inflation and employment theory. The American Economic Review, 59(2): 147–60. [Web of Science ®] , [Google Scholar]) and Pissarides (2000 Pissarides, C. A. 2000. Equilibrium Unemployment Theory, Cambridge, MA: MIT Press.  [Google Scholar]).     

Emil Lederer’s Theory of Economic Fluctuations and the Role of Financial Institutions

Abstract

Emil Lederer was characterized as the “leading academic socialist of Germany in the 1920’s” by Joseph Schumpeter and was a highly respected economist of his time. However, most aspects of his work remain totally unexplored. This paper focuses on Emil Lederer’s theory of economic fluctuations defending the thesis that certain aspects of Lederer’s conceptualization of economic fluctuations underwent considerable modifications when his 1925 article Konjunktur und Krisen is compared with his 1938 book Technical Progress and Unemployment, a shift unacknowledged so far in the literature. In his first attempt to tackle the issue, in Konjunktur und Krisen (1925), Lederer had constructed an explanation consistent with the so-called “disproportionality theory” introduced by Tugan-Baranowsky (codified as “early Lederer”). However, Lederer’s conception of the business cycle during the 1930s and especially in his major work Technical Progress and Unemployment underwent considerable modifications. Lederer’s (1938 Lederer, E. 1938. Technical Progress and Unemployment, Geneva: King and Son.  [Google Scholar]) analysis is, apparently, very ‘Schumpeterian’ (codified as “late Lederer”). In this version of his theory, the cycle is explained by supply-side factors, and more specifically by technical change. Additionally, Lederer’s view on the role of financial institutions (credit and banks) with regards to business cycles is analysed. Lederer avoided attributing a causative role to monetary factors. The interrelation between ‘real’ factors and financial institutions constitutes an essential element in his analysis of the business cycle.     

Escaping the Resource Curse

According to the World Tourism Organisation (UNWTO), tourism is ‘number one in the international services trade’, accounting for 40 per cent of global trade in services and 6 per cent of total world trade.1 1. ‘Tourism – The Path Ahead’, UNWTO NEWS Year XX, Issue 3 (2006), http://www.unwto.org/newsroom/magazine/archives/news3_06_e.pdf (accessed 30 May 2007), p. 6. The tourism industry directly provides around 3 per cent of global employment, or 192 million jobs – the equivalent to one in every twelve jobs in the formal sector. The International Labour Organization (ILO) predicts that this share is likely to rise to 251.6 million jobs by 2010, or one in every eleven formal sector jobs.2 2. International Labour Organization, ‘Human Resources Development, Employment and Globalization in the Hotel, Catering and Tourism Sector’, report for discussion at the Tripartite Meeting on the Human Resources Development, Employment and Globalization in the Hotel, Catering and Tourism Sector, Geneva 2001, http://www.ilo.org/public/english/dialogue/sector/techmeet/tmhct01/tmhct-r.pdf (accessed 30 May 2007). Tourism also has an indirect impact beyond employment through tourism-related goods and services, air travel and global consumption patterns. The relevance of tourism for global political economy can no longer be ignored by analysts wishing to account for changing global patterns in poverty and inequality. Despite this, with a handful of exceptions, tourism as a significant feature of contemporary global political economy has thus far attracted little attention in the field of international political economy (IPE).3 3. See Stephen Britton, ‘The Political Economy of Tourism in the Third World’, Annals of Tourism Research, Vol. 9, No. 3 (1982), pp. 331–358; Michael Clancy, ‘Tourism and Development: Evidence from Mexico’, Annals of Tourism Research, Vol. 26, No. 1 (1999), pp. 1–20; William I. Robinson, ‘Globalisation as a Macro-Structural–Historical Framework of Analysis: The Case of Central America’, New Political Economy, Vol. 7, No. 2 (2002), pp. 221–50; Mariama Williams, ‘The Political Economy of Tourism Liberalisation, Gender and the GATS’, International Gender and Trade Network Economic Literacy Series, #4, April 2002, http://www.igtn.org/pdfs/30_TourismGATS.pdf (accessed 30 May 2007). Achieving United Nations (UN) specialised agency status in November 2003, UNWTO is the only international institution existing solely to promote the spread of the tourism industry across the globe.4 4. Address by Francesco Frangialli, Secretary-General of UNWTO, to the fifty-eighth Session of the United Nations General Assembly', New York, 7 November 2003, http://www.unwto.org/newsroom/speeches/2003/disc_sg_ag_nu_7nov03_A4.pdf (accessed 30 May 2007). Its role can be understood in a number of ways: as a campaigning organisation for the tourism industry; as a donor for tourism development projects; and as the primary source of research and statistics on global tourism.

As a result of the macroeconomic developmental benefits to be gained from the tourism industry – including employment and foreign exchange generation – a growing number of countries are generating ‘national tourism development plans’, in which tourism is seen as the foundation of a country's development.5 5. This essay draws on the author's extensive interviews with tourism development policy makers, tourism workers, private-sector representatives and civil servants in Central America. Playing a consultancy role in such strategies, UNWTO needs to be taken seriously not merely as an industry-specific UN agency, but as an organisation with the ability to influence national and international development policy, albeit within the confines of the dominant development paradigm. This essay introduces the UNWTO by analysing the emergence, structure and scope of the organisation. A review of the organisation's activities identifies two key aims that guide the institution: tourism as a tool for poverty reduction and development, and the further liberalisation of the tourism services sector. ‘Tourism development’ as framed by UNWTO is presented as a problematic process, because of the potential conflict between poverty reduction and liberalisation of the tourism industry.     

Adolphe Quetelet,the average man and the development of economic methodology *

Abstract

Quetelet's contribution to statistics has received adequate attention in Stigler (1986 Stigler, S. M. 1986. The History of Statistics. The Measurement of Uncertainty before 1900, Cambridge & London, MA: Belknap Press of Harvard University Press.  [Google Scholar], 1999 Stigler, S. M. 1999. Statistics on the Table. The History of Statistical Concepts and Methods, Cambridge & London, MA: Harvard University Press.  [Google Scholar]) and Porter's (1986) seminal works on the history of that scientific discipline. 24 24 See also Westergaard (1932 Westergaard, H. 1932. Contributions to the History of Statistics, London: King & Son.  [Google Scholar]: 167–70), Klein (1997 Klein, J. 1997. Statistical Visions in Time. A History of Time Series Analysis 1662–1938, Cambridge: Cambridge University Press.  [Google Scholar]: 122–31). Our contribution investigates Quetelet's influence on economic methodology. Other scholars have already investigated his influence on econometrics and empirical economics (Morgan 1990 Morgan, M. S. 1995. The History of Econometric Ideas, Cambridge: Cambridge University Press. [1990] [Google Scholar], Stigler 1999 Stigler, S. M. 1999. Statistics on the Table. The History of Statistical Concepts and Methods, Cambridge & London, MA: Harvard University Press.  [Google Scholar]), but we argue that his influence on theoretical economics should be considered significant as well. We devote attention to Quetelet's concept of the ‘average man’. For this purpose we briefly summarize Quetelet's methodology and examine the evolution of his ideas as expressed in his published works. We then investigate his influence on Jevons's ‘calculus of pleasures and pains’ and on the statistical investigations of the German historical school. We argue that the history of statistics, and especially Quetelet's contribution, should not be neglected by historians of economic thought as it provides important insights into the development of economic methodology.     

Hayek and the General Theory ∗

Abstract

Hayek did not review the General Theory, but he criticized it in Profits, Interest and Investment (1939 Hayek, F. A. 1939. “Profits, interest and investment”. In Profits, Interest and Investment, London: Routledge & Sons.  [Google Scholar]) and in part IV of The Pure Theory of Capital (1941 Hayek, F. A. 1941. The Pure Theory of Capital, Chicago: The University of Chicago Press.  [Google Scholar]). First, he showed that only exceptionally does greater consumption favour investment and employment. Second, he rejected Keynes's liquidity preference and maintained that only in an ‘extreme case’ might it be said that Keynes's theory of the rate of interest is valid. Although he correctly identified the gist of Keynes's theoretical innovation, his criticisms were already implicitly answered in the General Theory.     

Exchange Rate Regimes and Inflation: Evidence from India

Abstract

Exchange rate stability is crucial for inflation management as a stable rate is expected to reduce domestic inflation pressures through a ‘policy discipline effect’ – restricting money supply growth, and a ‘credibility effect’ – inducing higher money demand and reduced velocity of money. Alternatively, the ‘impossibility trillema’ of Mundell (1961a Mundell, R. A. (1961a). Capital mobility and stabilization policy under fixed and flexible exchange rates. Canadian Journal of Economics and Political Science, 29, 475–485. doi: 10.2307/139336[Crossref], [Web of Science ®] , [Google Scholar], 1961b Mundell, R. A. (1961b). Flexible exchange rates and employment policy. Canadian Journal of Economics and Political Science, 27, 509–517. doi: 10.2307/139437[Crossref], [Web of Science ®] , [Google Scholar]) predicts that in the presence of an open capital account, a stable exchange rate may lead to lack of control on monetary policy and, hence, higher inflation. Using a monetary model of Inflation, this paper investigates the impact of the ‘empirically-claimed’ de facto stable exchange rate regime on inflation in India during different sub-periods of exchange rate stability. The results show that the impact of exchange rate regime on inflation is not visible in the Indian case, which could be because of the offsetting sterilization policy undertaken by the Reserve Bank of India (RBI) during expansionary money supply growth resulting from its large-scale intervention to even out exchange rate volatility.     

The effect of the market-based monetary policy transparency index on inflation and output variability

This paper examines empirically the effectiveness of the Federal Reserve’s policy under different levels of transparency by using a dynamic and continuous market-based index proposed by Kia (2011 Kia, A. 2011. “Developing a Market-based Monetary Policy Transparency Index: Evidence from the United States.” Economic Issues 16 (2): 53–79. [Google Scholar]) on inflation volatility and output volatility. In theory, the more transparent the monetary policy, the less volatile the money market will be with fewer disturbances and thus the more stable will be the economy. First, a bivariate VAR-BEKK-GARCH(1,1) model is estimated for inflation and output variables in the US economy in order to produce conditional variances and covariance over the period October 1982 to December 2011. Second, by incorporating conditional variances and transparency in a VAR model, impulse response functions reveal that after a positive shock in the Federal Reserve’s transparency (i.e. market participants consider the Federal Reserve’s actions to be more transparent), there is a statistically significant decrease in both inflation volatility and output volatility. Our results reveal the dynamic and crucial role that a central bank’s transparency plays in retaining economic stability and assuring the forecasts concerning inflation and economic growth made by the economic units.     

A model of the used car market with lemons and leasing

This article extends Kim's (1985 Kim, J-C. 1985. The market for lemons reconsidered: a model of the used car market with asymmetric information. American Economic Review, 75: 836–43.  [Google Scholar]) model of the used car market with asymmetric information to examine the possible impacts of leasing and Certified Pre-Owned (CPO) programs on the average quality of traded used cars in the market. The author assumed that a consumer can buy or lease a new car, or he/she can buy a used or a CPO car. While, like Kim (1985 Kim, J-C. 1985. The market for lemons reconsidered: a model of the used car market with asymmetric information. American Economic Review, 75: 836–43.  [Google Scholar]), the author assumed that the quality of a car depends on the maintenance level, the maintenance level in this model is chosen when a car is still a ‘new’ car, i.e. after the warranty ends. The model implied that the average quality of traded used cars can be either higher or lower than the average quality of nontraded used cars. The study also found that leasing and CPO have substantially improved the information mechanism between buyers and sellers of used cars, which, in turn, has helped reduce adverse selection and improved the average quality of traded used cars in the market.     

Another look at the spending response to the 2001 income tax rebates

This article revisits the spending response to the 2001 US tax rebates by focussing on two key aspects of how tax policy researchers use the Consumer Expenditure Survey (CEX). These two attributes, which are often overlooked, are as follows: the measures used for consumption and the ‘outlier’ criteria applied to the data. First, I reproduce the results in Johnson et al. (2006 Johnson, DS, Parker, JA and Souleles, NS. 2006. Household expenditure and the income tax rebates of 2001. American Economic Review, 96: 1589–610. [Crossref], [Web of Science ®] , [Google Scholar]), which (using the CEX) concluded that households immediately spent 20–40% of their rebates on nondurable consumption goods. Then, I show how making two changes – both of which are relied upon in the literature – affects their results. These adjustments reduce the estimated magnitude of the rebate's impact by as much as 100%.     

The persistence of Taiwan's output fluctuations: an empirical study using innovation regime-switching model

In this article we examine the persistence nature of Taiwan's aggregate output fluctuations by using the ‘innovation regime-switching’ (IRS) model in which the effect of an innovation may be permanent or transitory, depending on an unobservable state variable that follows a first order Markov chain. By applying the IRS model to Taiwan's real GDP data, we find that during the 1961 to 2000 period 61% (39%) of the real output shocks are likely to have permanent (transitory) effects. Moreover, the innovations in the officially identified expansion (contraction) are more likely to have a permanent (transitory) effect. These results are similar to those found in many studies of US real output fluctuations, e.g. Beaudry and Koop (1993 Beaudry, P and Koop, G. 1993. Do recessions permanently change output?. Journal of Monetary Economics, 31: 149–63. [Crossref], [Web of Science ®] , [Google Scholar]), Kim and Nelson (1999 Kim, C-J and Nelson, CR. 1999. Friedman's plucking model of business fluctuations: tests and estimates of permanent and transitory components. Journal of Money, Credit and Banking, 31: 317–34.  [Google Scholar]) and Kuan et al. (2005 Kuan, C-M, Huang, Y-L and Tsay, RS. 2005. An unobserved component model with switching permanent and transitory innovations. Journal of Business and Economic Statistics, 23: 443–54. [Taylor &; Francis Online], [Web of Science ®] , [Google Scholar]). However, we also find that Taiwan's output dynamics have changed drastically ever since year 2000. In particular, the shocks to real GDP have become more likely to have only transitory effect, even during the period of post-2001:IV expansion.     

The Political Power of Big Business: A Response to Bell and Hindmoor

There has been a recent resurgence of interest in debates about the power of business (Culpepper 2011 Culpepper, P. (2011). Quiet Politics and Business Power: Corporate Control in Europe and Japan, Cambridge: Cambridge University Press. [Google Scholar]; Bell 2012 Bell, S. (2012). The Power of Ideas: The Ideational Mediation of the Structural Power of Business. International Studies Quarterly, 56(4), 661–73. doi: 10.1111/j.1468-2478.2012.00743.x[Crossref], [Web of Science ®] , [Google Scholar]) and Bell and Hindmoor (2013 Bell, S., Hindmoor, A. (2013). The Structural Power of Business and the Power of Ideas: The Strange Case of the Australian Mining Tax. New Political Economy, ,forthcoming. Available from: http://dx.doi.org/10.1080/13563467.2013.796452 [19 (3), pp. 470–486, cross-references updated] [Google Scholar]) make an important, theoretically informed, but empirically rooted, contribution to that debate. In this response, we address both aspects of their contribution, arguing that their treatment of Lindblom is partial and, consequently, so is their explanation of the case. As such, we largely rely on their narrative of the evolution of the Australian mining tax, focusing first on critically examining Bell and Hindmoor's theoretical position, before turning to their analysis of the case.     

Estimated non-linearities and multiple equilibria in a model of distributive-demand cycles

We introduce the results of a non-parametric estimate of the US wage-Phillips Curve into a simplified version of the model of the wage-price spiral by Flaschel and Krolzig (2008). Making use of Okun’s law, the non-linearity in the wage inflation-employment relation translates into a non-linearity in the so-called ‘distributive curve’ of the economy. Exploiting the observed non-linearity in extending an otherwise standard demand-distribution model (Taylor 2004 Taylor, Lance. 2004. Reconstructing macroeconomics. structuralist proposals and critique of the mainstream, Cambridge, MA: Harvard University Press.  [Google Scholar]), we provide a dynamical analysis both in wage-led and profit-led effective demand regimes. In a profit-led scenario, shown to be the empirically relevant case for the US economy, there are two stable equilibria of Goodwin (1967 Goodwin, R.M. 1967. “A growth cycle”. In Socialism, capitalism and economic growth, Edited by: Feinstein, C.H. Cambridge, , UK: Cambridge University Press.  [Google Scholar]) growth cycle type, identified as a stable depression and a stable boom, and a saddle-path stable equilibrium in between them. Both stable steady states are surrounded by trajectories that cycle counterclockwise around their basins of attraction. The obtained type of growth fluctuations can be verified by a long phase cycle estimation for the US economy using a method developed by Kauermann, Teuber and Flaschel (2008 Kauermann, G., Teuber, T. and Flaschel, P. 2008. “Estimating loops and cycles using penalized splines”. Bielefeld: CEM working paper.  [Google Scholar]).     

Scope and scale economies in multi-utilities: evidence from gas,water and electricity combinations

Within the recent debate on liberalization of local public services, the paper investigates the cost properties of a sample of Italian public utilities providing in combination gas, water and electricity. The estimates from a Composite Cost Function econometric model (Pulley and Braunstein, 1992 Pulley, LB and Braunstein, YM. 1992. A composite cost function for multiproduct firms with an application to economies of scope in banking. Review of Economics and Statistics, 74: 221–30.  ) are compared with the ones coming from other traditional functional forms such as the Standard Translog, the Generalized Translog, and the Separable Quadratic. The results highlight the presence of global scope and scale economies only for multi-utilities with output levels lower than the ones characterizing the ‘median’ firm. This indicates that relatively small specialized firms would benefit from cost reductions by evolving into multi-utilities providing similar network services such as gas, water and electricity. However, for larger-scale utilities the hypothesis of null cost advantages is not rejected. Thus, it is possible that the recent diversification waves of leading companies are explained by factors other than cost synergies, so that the welfare gains that can be reasonably expected from such examples of horizontal integration, if any, are likely to be very low.     

External Constraint and Financial Crises with Balance Sheet Effects

This article investigates the dynamic implications of Krugman's (1999 Krugman, P. 1999. Balance sheets, the transfer problem, and financial crises. International Tax and Public Finance, 6(4): 459–472. (doi:10.1023/A:1008741113074)[Crossref], [Web of Science ®] , [Google Scholar]) model of financial crises with balance-sheet effects, which has a considerable impact on the literature of international financial crisis. Considering explicitly the wealth-accumulation constraint and the external equilibrium condition, I describe an emerging-market financial crisis as a jump from an unstable dynamic trajectory to a stable one, instead of a jump from a ‘good’ to a ‘bad’ equilibrium with zero investment and zero foreign debt. By discriminating the financial crises according to the severity of the negative impacts of some internal and external factors, this article also adds some insights into the anti-crisis policy.     

Irving Fisher's debt deflation analysis: From the Purchasing Power of Money (1911) to the Debt-deflation Theory of the Great Depression (1933)

Abstract

In 1933, Irving Fisher proposed an explanation for the Great Depression based on the distinction between the price level and price change effect of deflation in a context of over-indebtedness. This paper compares the debt-deflation theory of Fisher (1933 Fisher, I., 1933. The debt-deflation theory of great depressions, Econometrica 1 (1933), pp. 337–57. DOI: 10.2307/1907327[Crossref], [Web of Science ®] , [Google Scholar]) with the dynamic depression process he had expounded almost 20 years earlier in the Purchasing Power of Money (1911). The role played by both price level and price change effects in the analyses of Fisher (1933, 1911) are clarified in the context of the disequilibrium model of Tobin (1975 Tobin, J., 1975. Keynesian models of recession and depression, American Economic Review 65 (1975), pp. 195–202.[Web of Science ®] , [Google Scholar]). More precisely, we show that the stationary equilibrium is assumed to be locally unstable according to Fisher's 1911 insights and globally unstable according to his 1933 analysis.     

Inflation,growth, and distribution: The Brazilian economy after the post war

Abstract

Following Marglin and Bhaduri (1990 Marglin, S.A., and Bhaduri, A. “Profit Squeeze and Keynesian Theory.” In S.A. Marglin and J. Schor (eds.), The Golden Age of Capitalism. Reinterpreting the Postwar Experience. Oxford: Clarendon, 1990. [Google Scholar]), the purpose of this paper is to investigate empirically the interaction between income distribution and growth of aggregate demand during the 1951–89 period in Brazil. Applying Hein and Vogel’s (2008) methodology we conclude that the Brazilian economy showed a profit-led demand regime. In a context of high inflation, high concentration of markets, and wage control, retained profits were the main source to finance new capital. In this sense, we found a large sensitivity of investment relative to the wage share, a result that is compatible with a consumption pattern based on high income, which supported the growth trend with low wages observed during the period.     

The long memory model of political support: some further results

This article extends the results of Byers et al. (1997 Byers, JD, Davidson, JEHD and Peel, DA. 1997. Modelling political popularity: an analysis of long range dependence in opinion poll series. Journal of the Royal Statistical Society, 160: 471–90. Series A [Google Scholar]) on long memory in support for the Conservative and Labour Parties in the UK using longer samples and additional poll series. It finds continuing support for the ARFIMA(0,?d,?0) model, though with somewhat smaller values of the long memory parameter. We find that the move to telephone polling in the mid-1990s had no apparent effect on the estimated value of d for either party. Finally, we find that we cannot reject the hypotheses that the parties share a common long memory parameter which we estimate at around 0.65.