To save content items to your account,
please confirm that you agree to abide by our usage policies.
If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account.
Find out more about saving content to .
To save content items to your Kindle, first ensure no-reply@cambridge.org
is added to your Approved Personal Document E-mail List under your Personal Document Settings
on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part
of your Kindle email address below.
Find out more about saving to your Kindle.
Note you can select to save to either the @free.kindle.com or @kindle.com variations.
‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi.
‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.
Little is known about the careers of parliamentarians after they leave parliament. We analyse the post‐parliamentary careers of German and Dutch parliamentarians over the last 20 years and document the presence of a persistent and substantial gender gap. This gap exists regardless of party, country or political position and persists even when the status of the pre‐parliamentary profession and achievement within parliament are controlled for. Aside from demonstrating our findings, we offer new insights into possible explanations for the dynamics behind them. Additionally, we show that parliament only serves as a stepping stone for a more successful career for a relatively small share of politicians: only 32 per cent of MPs obtain more attractive positions in the public or private sector after their legislative service.
This work presents wavepacket models for supersonic round twin jets operating at perfectly expanded conditions, computed via plane-marching parabolised stability equations based on mean flows obtained from the compressible Reynolds-averaged Navier–Stokes (RANS) equations. High-speed schlieren visualisations and non-time-resolved PIV measurements are performed to obtain experimental datasets for validating the modelling strategy. The RANS solutions are found to be in good quantitative agreement with the particle image velocimetry (PIV) mean-flow measurements, confirming the ability of the approach to capture the interaction between jets at the mean-flow level. The obtained wavepackets consist of toroidal and flapping fluctuations of the twin-jet system, and show similarities with those of single axisymmetric jets. However, for the case of closely spaced jets, they exhibit deviations in the phase speed of structures travelling in the outer mixing layer and those travelling in the inner one, leading to different non-axisymmetric behaviours. In particular, toroidal twin-jet wavepackets feature tilted ring-like structures with respect to the jet axis, while flapping twin-jet wavepackets are distorted and lose the clean chequerboard pattern typically observed in $m = 1$ modes in axisymmetric jets. A quantitative comparison of the modelled wavepackets with experimentally educed coherent structures is performed in terms of their structural agreement measured through an alignment coefficient, providing a first validation of the modelling strategy. Alignment coefficients are found to be particularly high in the intermediate range of studied frequencies.
The goal of this article is to understand which combinations of explanatory conditions account for the qualitative differences within forms of democratic breakdown (i.e., transition from democracy to a hybrid or authoritarian regime) and democratic regression (i.e., transition within democracy through a loss of democratic quality). The analysis focuses particularly on the specific features of those processes of change ending up with a transition from democratic rule, compared to those producing a simple loss of democratic quality within the democratic regime. Applying two‐step fuzzy‐set Qualitative Comparative Analysis (fsQCA), the study aims to integrate different types of explanatory factors, offering a fresh and comprehensive perspective on this phenomenon.
How does international migration impact the composition of the demos? Constitutional doctrines and democratic theories suggest contrasting responses: an insular one excludes both non‐citizen immigrants and citizen‐emigrants; a deterritorialised one includes all citizens wherever they reside; a postnational one includes all residents and only these. This article argues that none of these predicted responses represents the dominant pattern of democratic adaptation, which is instead a level‐specific expansion of the national franchise to include non‐resident citizens and of the local franchise to include non‐citizen residents. This is demonstrated by analysing an original dataset on voting rights in 31 European and 22 American countries, and outlining a level‐sensitive normative theory of citizenship that provides support for this pattern as well as a critical benchmark for current franchise policies. The findings can be summarised in two inductive generalisations: (1) Voting rights today no longer depend on residence at the national level and on citizenship of the respective state at the local level; (2) Voting rights do, however, generally depend on citizenship of the respective state at the national level and on residence at the local level. In the article, these are called the patterns of franchise ‘expansion’ and ‘containment’. The former supports the idea of widespread level‐specific expansion of the franchise and refutes the insular view of the demos. The latter signals corresponding level‐specific restrictions, which defeats over‐generalised versions of deterritorialised or postnational conceptions of the demos. In order to test how robust this finding is, cases are analysed where the dominant patterns of expansion have been resisted and where unexpected expansion has occurred. With regard to the former, the article identifies constitutional and political obstacles to voting rights expansion in particular countries. With regard to the latter, the article shows that even where national voting rights have been extended to non‐citizen residents, containment remains strong through indirect links to citizenship.
In June Alliance MP Frank Grover left the Alliance for the Christian Heritage party. As he continued to sit on the opposition benches, this made little difference to the political balance within Parliament.
Energy communities allow people to produce, share, and manage renewable energy together, helping reduce carbon emissions and decentralize the energy system. Their success, however, depends on whether citizens are willing to participate. This study explores what drives people to engage in these communities, especially the influence of positive emotions and the feeling of empowerment. By surveying Portuguese citizens, the research shows that joy and empowerment significantly increase interest and participation in energy communities. These insights can help policymakers and practitioners create more engaging and citizen-centred sustainable initiatives.
Technical summary
Energy communities play a key role in advancing decentralized and low-carbon energy systems by placing citizens at the centre of energy production and management. Yet, their effective implementation depends on citizens’ willingness to engage. This study examines the determinants of citizens’ behavioural intention to participate in energy communities, with particular emphasis on hedonic motivations and empowerment. To do so, a conceptual model integrating the Hedonic-Motivation System Adoption Model (HMSAM) and empowerment theory was developed. Data were collected through an online survey administered to Portuguese citizens, yielding 307 valid responses. Structural equation modelling (SEM) was used to test the proposed relationships. The results show that empowerment significantly moderates the effect of joy on behavioural intention, strengthening both the intention to participate and overall engagement in energy communities. These findings highlight the importance of positive emotional experiences and perceived control in motivating sustainable behaviours. The study provides practical guidance for policymakers and practitioners seeking to enhance citizen engagement, suggesting that fostering empowering and emotionally rewarding experiences can support the development and successful uptake of energy communities.
Social media summary
Empowerment and joy boost citizen engagement in renewable energy communities.
This paper challenges some widespread theoretical assumptions and practices in the study of populism and proposes a new multidimensional approach to generate and analyse data on this latent construct. Rather than focusing on categorising subjects as populists or not, it recommends reaching a better understanding of what populism is, the salience and relative weight of its attributes and how they interact creating an inner populist logic.
Despite the increasing media and academic attention, historical discrepancies in how to conceptualise and operationalise populism have hindered cumulative progress in the literature. Initially most efforts were devoted to the study of specific movements, without a clear comparative angle, and the concept of populism was often conflated with that of nationalism. When the literature started to pay more attention to the analysis of the attributes associated with populism serious disagreements emerged concerning its true essence. Populism has been conceptualised as an ideology, a cynical strategy, a performative style and a discursive logic of articulation. The disputes between these competing interpretations have arguably slowed down the generation of comparative data.
Although this article is meant to be a critique of the current state of the field and a call to make it pivot into a slightly different direction, it does not adopt an iconoclast stance and largely tries to reconcile the different existing research traditions – ideational, discursive, performative and strategic. It shows that their efforts are to a great extent complementary but mostly operating on different rungs of the ladder of abstraction. This paper argues that shifting from minimal definitions into a multidimensional approach may stimulate the generation of comparative data on a wider range of attributes and facilitate the identification of degrees and varieties within populism.
This paper develops a new analytical framework which deconstructs populism into five dimensions: (1) depiction of the polity, (2) morality, (3) construction of society, (4) sovereignty and (5) leadership. These dimensions, that synthesise the most influential conceptualisations of populism, are empirically and theoretically interconnected and encompass ideational, discursive and performative attributes suggested in the literature. These dimensions are in turn composed of lower order attributes forming a multilayered network structure. This multidimensional framework provides a heuristic template that can be adapted and operationalised in diverse ways depending on the hypotheses, type of data and subjects of the analysis. Some examples of how to turn these dimensions into variables to capture supply‐ and demand‐side populism are introduced. Future empirical research could help map and better understand the network of interactions and intersections among these dimensions and attributes. This could be the key to settle some of the current conceptual debates about populism and its varieties.
Party politics and electoral research generally assume that party members are loyal voters. This article first assesses the empirical basis for this assumption before providing individual‐level explanations for defection. It combines prominent theories from party politics and electoral behaviour research and argues that internal disagreement and external pressure can each bring about disloyal voting. The hypotheses are motivated with multi‐country European survey data and tested on two sets of party‐level national surveys. The results show, first, that, on average, 8 per cent of European party members cast a defecting vote in the last election, and second, that dissatisfaction with the leadership is the strongest predictor of defection. Additionally, internal ideological disagreement is associated with higher probabilities of defection, whereas the effects of pull factors in the form of contentious policies are rather limited. These findings emphasise the importance of testing scientific assumptions and the potential significance of party leadership contests.
Treaties are a valuable tool for policymakers because they are both legally binding on, and symbolically powerful signals of, commitments of states that ratify. Why states choose to ratify treaties is unclear, although social pressures appear to play some role. This article argues that global performance indicators can influence the ratification process, but that the effect varies depending on where states fall on these measures. In the mid‐range of a scale, fast ratification has significant benefits and relatively few costs. However, indicators have less of a catalysing effect at the extreme ends of the scale, where the costs are higher and the benefits are lower. This article uses policy performance indicators as independent variables in duration analyses of the ratification of the United Nations Convention against Corruption (2003) and the Protocol to Prevent, Suppress and Punish Trafficking in Persons Especially Women and Children (2000). It finds states in the mid‐range of the indicator are faster to ratify than states that are not ranked, whereas the other categories are statistically insignificant. These findings imply that indicators matter for those in the middle, but not as much for those at the extremes. This finding enriches our understanding of treaty ratification and has potential implications for performance metrics as a tool to promote policy change for those states in the middle, highlighting the strengths and limitations of indicators as a force for change.
This study examines the ideological alignment of beliefs within opposing partisan camps in Europe. Integrating multiple types of research, I hypothesize that partisans on the ideological left exhibit greater alignment in their beliefs compared to those on the right – an asymmetry that extends across various issues. I argue that on the scale of ideological contention, it matters if partisans on one ideological pole are more aligned in beliefs than those on the other. Only the less ideological of opposing camps determines the extent of mutual disagreement. Utilizing conventional methods and innovative belief network modelling, I analyse survey data from the fourth and eighth waves of the European Social Survey (2008, 2016). To test the hypothesis, I match partisans with the data on their party's ideology, covering partisans from 131 parties in 15 European countries to test this hypothesis. My findings reveal that, both at the European level and within national contexts, there is a broad and substantive asymmetry between the right and the left across ideological dimensions and issues. However, the study also uncovers the limits of this asymmetry, highlighting a significant shift in ideological alignment on sociocultural issues on the right, indicating the emergence of a deeper, broader ideological conflict in that dimension. Furthermore, my analysis demonstrates the marginal influence of strategies like position blurring and programmatic nicheness. These insights shed light on the nature of partisan contention in Europe and how it disproportionately depends on ideological alignment on the right.
Many previous theoretical analyses of multiparty coalition behaviour have been based either on one‐dimensional policy model or on a constant‐sum game interpretation. For theoretical and empirical reasons this paper focusses on a competitive two‐dimensional model. In this model parties are concerned with policy outcomes but choose party positions both with a view to electoral consequences and as a basis for coalition bargaining. The political heart is proposed as the set of possible coalition outcomes. The heart is either the core of the political game or is determined by a small number of party positions. Under certain conditions an equilibrium in the choice of party positions can be shown to exist. The model suggests that parties can be categorized as either strong or weak core parties, anti‐core parties or peripheral parties. This categorization of parties implies a typology of party systems, which gives some theoretical foundation for the occurrence of minority, minimal winning and surplus coalitions in many of the European countries in the postwar period.
This study examines sentence comprehension in two in-situ heritage Slovene communities in Italy’s border-shift context, comparing the Gorizia/Trieste (N = 66) and Natisone Valley (N = 43) adult populations with monolingual Slovene speakers. While both heritage groups operate in Italian-dominant bilingual environments near the Slovenian border, they differ in Slovene exposure due to varying institutional support. Using a sentence–picture verification task, this study examines comprehension of non-canonical word order, relative clauses and cataphoric dependencies. The Gorizia/Trieste group performed comparably to monolinguals, demonstrating strong sensitivity to case morphology and syntactic processing. Conversely, the Natisone group showed reduced accuracy and longer response times across all domains, reflecting case system vulnerability and processing limitations linked to reduced exposure. These findings highlight the important role of active maintenance and institutional support, independent of geographical proximity to the mainland, in shaping heritage language grammars and their use.
We prove that for bounded, divergence-free vector fields $\boldsymbol{b}$ in $L^1_{loc}((0,1];BV(\mathbb{T}^d;\mathbb{R}^d))$, there exists a unique incompressible measure on integral curves of $\boldsymbol{b}$. We recall the vector field constructed by Depauw in [8], which lies in the above class, and prove that for this vector field, the unique incompressible measure on integral curves exhibits stochasticity.
The economic crisis that started in 2008 has negatively affected European nations to different degrees. The sudden rise in demonstrations particularly in those countries most hard hit by the crisis suggests that grievance theories, dismissed in favour of resource‐based models since the 1970s, might have a role to play in explaining protest behaviour. While most previous studies have tested these theories at the individual or contextual levels, it is likely that mechanisms at both levels are interrelated. To fill this lacuna, this article examines the ways in which individual‐level grievances interact with macro‐level factors to impact on protest behaviour. In particular, it examines whether the impact of individual subjective feelings of deprivation is conditional on contextual macroeconomic and policy factors. It is found that while individual‐level relative deprivation has a direct effect on the propensity to have protested in the last year, this effect is greater under certain macroeconomic and political conditions. Both significant results for the cross‐level interactions are interpreted in terms of their role for opening up political opportunities for protest among those who feel they have been most deprived in the current crisis. These findings suggest that the interaction of the contextual and individual levels should continue to be explored in future studies in order to further clarify the mechanisms underlying protest behaviour.
The process of government formation after the general elections to the Lower House of Parliament, the Nationalrat, on 3 October 1999 could not be brought to an end before the turn of the year. The conservative party, the ÖVP, which had been junior partner in a grand coalition with the social democratic party, the SPÖ, since 1987, had declared during its election campaign that it would go into opposition if it did not finish above third place. As a matter of fact, the populist right-wing FPÖ managed to surpass the ÖVP by 414 votes and for the first time in electoral history became the second strongest party at the national level (see Political Data Yearbook 1999). Up to this time, the FPÖ under its charismatic party chairman Jörg Haider had been considered as unacceptable for government participation because of his vehement attacks against the ‘old parties’ and other ‘pillars’ of the democratic republic, in particular social partnership, because of his radical ideas aiming to establish an authoritarian presidential republic, and because of his ambiguous stance towards National Socialism. Expecting heavy international protests in case of government participation of the FPÖ, Federal President Thomas Klestil favoured a continuation of the incumbent SPÖ–ÖVP coalition, even if the political climate between the two parties and the reform capacity of the government had deteriorated in recent years.
Nucleation phenomena associated with cloud cavitation about a three-dimensional (3-D) NACA$\,$16-029 hydrofoil are explored experimentally in a cavitation tunnel where susceptible free stream nuclei are absent. Microbubble nuclei are found to be intrinsically generated by cavity collapse and become sequestered in the low-momentum separated region ahead of the cavity leading edge. Nuclei dynamics upstream of a shedding sheet cavity was investigated using high-speed photography. Measurements were performed at zero incidence for cavitation numbers in the range of $0.55 \gt \sigma \gt 0.45$, and chord-based Reynolds numbers of $ \textit{Re} = 0.75\times 10^6$ and $ \textit{Re} = 1.5\times 10^6$. Nuclei are generated each shedding cycle due to cavity breakup from condensation shock-wave phenomena. These nuclei may undergo immediate activation or transport due to pressure gradients, local re-circulation and jetting. Some nuclei remain upstream of the cavity leading edge over multiple cycles. Several phenomena influence this behaviour, including cyclical variation of the boundary layer properties with each shedding cycle. A major conclusion of the work is that these nuclei are produced in a self-sustaining manner from near surface, small scale, interfacial or viscous phenomena rather than from surface or free stream nuclei. Additionally, these experiments reveal the low-momentum region upstream of the cavity to be above vapour pressure, despite the meta-stable tension developed in the boundary layer further upstream of the cavity.
What are the political conditions affecting male MPs’ willingness to represent women's interests in parliament? This paper explores the role of electoral vulnerability in this regard and analyzes whether male MPs’ re‐election prospects affect their likelihood of paying attention to women's concerns. Theoretically, we expect that male MPs are not blamed if they do not represent women's interests but can gain additional credit for doing so. Thus, male MPs should be more likely to speak on behalf of women if their electoral vulnerability is high and if they need to win additional votes to be re‐elected. Empirically, the paper analyzes the representation of women's issues in the British House of Commons, by using Early Day Motions tabled preceding the General Elections in 2001, 2005, 2010 and 2015. The results show that male MPs are more likely to represent women's interests when their re‐election is at risk.