Database

Our laser technique can tell apart elephant and mammoth ivory – here’s how it may disrupt the ivory trade

Retrieved on: 
Thursday, April 25, 2024

In recent years, the global trade in elephant ivory has faced significant restrictions in an effort to protect dwindling elephant populations.

Key Points: 
  • In recent years, the global trade in elephant ivory has faced significant restrictions in an effort to protect dwindling elephant populations.
  • The sale of mammoth ivory, sourced primarily from long-extinct species, however, remains unregulated.
  • But it’s a significant challenge for customs and law enforcement agencies to distinguish between ivory from extinct mammoths and living elephants.
  • Now our new study, published in PLOS ONE, presents a major breakthrough – using a well known laser technique to tell mammoth and elephant ivory apart.


This activity not only has commercial implications. It also raises significant ethical and environmental concerns. That’s because it disturbs preserved ecosystems and involves the extraction of resources that have great value to paleontological science.

Laser insights

  • We use a non-invasive laser technique known as Raman spectroscopy to identify the origin of a piece of ivory.
  • The technique works by directing a laser light onto the ivory sample.
  • This released light scatters back with more or less energy than the initial laser light sent to the sample.

Important implications

  • This makes it an ideal tool for customs officials who need to make rapid decisions.
  • Our study was conducted on a benchtop spectrometer (a device which breaks up light by wavelength) within a laboratory.
  • We are working with Worldwide Wildlife Hong Kong and the Foreign and Commonwealth Development Office to develop this technique.


Rebecca Shepherd receives funding from EPSRC and the FCDO.

Dominant currency pricing in international trade of services

Retrieved on: 
Thursday, April 25, 2024

Abstract

Key Points: 
    • Abstract
      We analyze, for the first time, how firms choose the currency in which they price transactions
      in international trade of services and investigate, using direct evidence, whether the US dollar
      (USD) plays a dominant role in services trade.
    • JEL: F14, F31, F41
      Keywords: dominant currency paradigm, international trade, services.
    • Related research has
      shown that the US dollar (USD) exchange rate is a major source of swings in
      global trade in goods?a ?dominant currency pricing? (DCP) phenomenon?since
      most goods traded internationally are invoiced and sticky in USD.
    • Yet it is also key to look at dominant currency pricing in international trade
      in services for several reasons.
    • First, global trade in services is big?accounting for
      about a quarter of global gross trade flows and for around 40% in terms of valueadded trade.
    • Third, and relatedly, the
      future of globalisation might be in trade in intermediate services?as progress with
      digitech lowers technological barriers to such trade across borders.
    • But perhaps the main reason is that trade in services is conceptually different
      from trade in goods.
    • Our paper is the first, to our best knowledge, that analyzes how firms choose
      the currency in which they price transactions in international trade of services and
      that examines whether dominant currency pricing differs between trade in goods
      and services using direct evidence? hitherto unavailable?on patterns of currency
      choices in international transactions in services compared to goods.
    • Work on dominant currency pricing has
      almost exclusively focused on trade in goods.
    • One reason is that data on patterns
      in invoicing currency for trade in services are ?virtually nonexistent? (Adler et al.
    • Yet it is important to look at dominant currency pricing in international trade
      in services for several reasons.
    • Using the exporter?s (or producer) currency in exports is known in the literature as producer
      currency pricing (PCP), while using the importer?s currency is known as local currency pricing (LCP)
      and using a third currency is known as vehicle currency pricing (VCP).
    • Our paper is the first, to our best knowledge, that analyzes how firms choose the
      currency in which they price transactions in international trade of services and that
      examines whether dominant currency pricing differs between international trade in
      goods and services using direct evidence ? hitherto unavailable ? on patterns of
      currency choices in international transactions in services compared to goods.
    • First,
      we rule out compositional effects, that is that differences in the use of currencies
      reflect differences in trade partners in services vs. goods trade.
    • Both in extra-EU and intra-EU trade, the EUR is the
      most widely used currency, be it on the export or import side.
    • Based
      on the framework, we stress which factors should determine currency choices in
      international trade, and to what extent one should expect differences between
      services trade and goods trade.
    • Second, it can price in the importer?s currency
      (local currency pricing, LCP).4 Third, it can use a third currency, say currency
      v (vehicle currency pricing, VCP).
    • That is,
      the currency choice problem is equivalent to determining the currency in which the
      desired price is least volatile.
    • (2022)
      provide systematic empirical evidence ? firm size and exposure to foreign currencies
      in imported inputs ? should also shape currency choices in services trade.
    • Dominant currency pricing in USD ? services vs. goods trade
      Having established that currency choice in international trade of services is an
      active firm-level decision as well as the determinants of this decision, we now

      8.

    • Services and goods exports: prevalence of different pricing strategies (percent)
      Notes: The table shows the shares (in value terms) of different pricing strategies: producer currency
      pricing (PCP), local currency pricing (LCP) and vehicle currency pricing (VCP).
    • To make comparisons with goods trade, we rely on Eurostat?s
      macro data on international trade in goods by invoivcing currency.
    • If intra-EU trade is more important in services than
      in goods trade, this could hence be an explanation for the lower prevalence of the
      USD in services trade.
    • We showed
      that while the USD is also extensively used as a vehicle currency in services trade, its
      prevalence is systematically lower than in goods trade.
    • Hence for all travel services exports
      the invoicing currency is the EUR; for travel imports it is the currency of the
      destination of travel (i.e.
    • Also for these

      ECB Working Paper Series No 2932

      33

      services it seems plausible that trade does not take place vis-?-vis all counterparts
      in each currency.

    • Figure B.2: Share of international trade in services in global GDP broken down by type (%)
      Notes: Authors? calculations using World Bank and World Trade Organization data.
    • An earlier version of this paper circulated under the title ?Currency choices and the role of the
      U.S. dollar in international services trade?.

EU migration overhaul stresses fast-track deportations and limited appeal rights for asylum seekers

Retrieved on: 
Tuesday, April 23, 2024

The pact is a legacy of the 2015 migration crisis when EU countries saw more than 1 million people claim asylum after arriving, mainly by boat, to European countries.

Key Points: 
  • The pact is a legacy of the 2015 migration crisis when EU countries saw more than 1 million people claim asylum after arriving, mainly by boat, to European countries.
  • Front-line European countries, including Greece and Italy, were overwhelmed by the sheer numbers, prompting anti-migrant violence and a backlash from far-right political parties.
  • Authorities there were struggling to provide the bare minimum of aid and failing to provide legal protection or process asylum claims.
  • But to critics of the pact, the reforms will institutionalize inequality, instrumentalize migration crises and ignore the actual holes in migration governance.

Stalling reform

  • Hungary, the Czech Republic and Poland refused to participate, and in 2020 the EU Court of Justice found they had broken EU law.
  • Nevertheless, the quota system was never scaled up, leaving front-line states to continue to process much of Europe’s refugee population.
  • Since 2016, the European Commission has proposed multiple reforms, but negotiations stalled because of opposition from far-right governments in Eastern Europe.
  • Previously, the database included only fingerprints – not images or biographic details – of people above the age of 14.
  • The pact also makes it easier for police to access the database.
  • Together, these other four directives work to make it harder for people to make asylum claims in the EU.
  • They claim that the reforms also undermine the right of appeal – sometimes deporting people before an appeals decision is finalized – and expand detention.

Leveraging migration flows

  • Biden’s executive order paralleled President Donald Trump’s earlier transit and entry bans, arguing that asylum seekers must apply in the first safe country they transit.
  • The EU reforms also parallel recent proposals from Biden to shut down the border during migration surges.
  • There is growing academic literature on “migration diplomacy” and “refugee blackmail” that documents how states leverage migration flows as a tool in their foreign policy.
  • Critics argue that this commodifies refugees – literally putting a price tag on individual lives – while undermining solidarity.

‘Fortress Europe’


The need for EU migration reform was made clear by the 2015 crisis faced by front-line European countries. But rather than address the real problems of low state capacity, processing times, human rights protections, or conditions in detention centers, I believe the pact will reinforce the concept of “Fortress Europe” by investing in deterrence and deportation, not human rights.
Nicholas R. Micinski does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.

Housing investment and the user cost of housing in the euro area

Retrieved on: 
Tuesday, April 23, 2024

Furthermore, we use an empirical model to relate the level of housing investment to the user cost of housing.

Key Points: 
  • Furthermore, we use an empirical model to relate the level of housing investment to the user cost of housing.
  • This highlights the possibility of further weakness in euro area housing investment, which could persist for some time if there is no significant decline in the user cost of housing.

Nowcasting consumer price inflation using high-frequency scanner data: evidence from Germany

Retrieved on: 
Tuesday, April 23, 2024
Consensus, Online, Cream, Honey, Tax, Glass, MAPI, Consensus Economics, Journal of Economic Perspectives, Milk, Shower, Low-alcohol beer, Autoregressive–moving-average model, Infant, C3, Islam, Wine, Core inflation, Research Papers in Economics, National accounts, Kálmán, Barcode, Journal of International Economics, Communication, Royal Statistical Society, COVID19, Kohl (cosmetics), Natural disaster, Business, Observation, Paper, VAT, European Economic Review, Diebold Nixdorf, Blancmange, Calendar, Sunflower oil, Annual Review of Economics, Hand, C4, DESTATIS, NBER, Tinning, Razor, Forecasting, Gasoline, Coffee, European Economic Association, Cat, Journal of Monetary Economics, Journal of Applied Econometrics, Medeiros, Architecture, Oxford University Press, Producer, GfK, Quarterly Journal of Economics, Margarine, NCBS, Starch, Political economy, Consistency, COVID-19, Consensus decision-making, Website, MIDAS, Behavior, Deutsche Bundesbank, PPI, World Bank, Collection, Medical classification, Orange, Eurozone, Butter, FMCG, Noise, Travel, Clothing, History, Inflation, Liver, International economics, Journal of Political Economy, BSI, OLS, Statistics, Consumer, PDF, University of Chicago, Classification, ECB, Fats, Policy, Multi, WOB, Outline, C6, Mincing, Canadian International Council, Social science, Perfume, University of California, Berkeley, Journal of Forecasting, Federal Reserve Bank, JEL, L1, Journal, Research, Candle, Food, TPD, Credit, Spice, LPG, Janssen, Marmalade, Superior, Literature, Chocolate, Beef, Kiel University, European Central Bank, Natural gas, HICP, Monetary economics, Yogurt, Section 5, ILO, Bermingham, Price, GTIN, Cheese, Macroeconomics, Growth, Beck, XJ, Government, De Beer, Supermarket, Ice cream, Naturally, C53, Corn flakes, BIS, Biscuit, LASSO, Petroleum, A.2, Poultry, Accuracy and precision, Application, White, Lettuce, Risk, ESCB, University of Siegen, OECD, Chapter One, Lipstick, Sack, XT, BIC, Garlic, Consumption, Sokol, Meat, VAR, Database, Section 3, Rusk, American Economic Journal, Royal, Curd, Overalls, Lamb, Great Lockdown, Fruit, Economy, COICOP, International Journal of Forecasting, Aftershave, Section 2, Nonparametric statistics, Attention, Conference, CPI, Heat, Public economics, Common sunflower, Nowcasting, American Economic Review, Computational Statistics (journal), GFK, COVID-19 pandemic, Exercise, Shock, Running, UNECE, Edible, Gambling, Banco, Rigid transformation, European Commission, Frozen, C.2, PRISMA, Official statistics, Concept, Drink, Transaction data, Somatosensory system, Punctuality, Altbier, Food prices, Response, GDP, Index, E31, Cabinet of Germany, Holiday, Machine learning, Series, Green, Whisky, Vegetable, Cola, Journal of Econometrics, Sadik Harchaoui, University, Aggregate, World Bank Group, B.1, Use, Book, Economic statistics, Civil service commission, 1L, Apple, Bread, Filter, Central bank, Brandeis University, Economic Modelling, Bank, Barkan, Roulade, Dairy product, Neural network, Reproduction, IMF, Section, ID, Data, D4L, Cryptocurrency

Key Points: 

    London Marathon: how visually impaired people run

    Retrieved on: 
    Thursday, April 18, 2024

    For the visually impaired (VI) runners on the start line, their approach to this famous route will differ from their sighted counterparts.

    Key Points: 
    • For the visually impaired (VI) runners on the start line, their approach to this famous route will differ from their sighted counterparts.
    • Just as there are misconceptions about blindness itself, many people are confused about how VI people run.
    • The reality is that, like all runners, VI runners have diverse experiences, preferences and needs.
    • Through touch, hearing, smell and usable vision, VI runners actively develop unique relationships with the routes they run.

    Barriers to running

    • With VI people being one of the most inactive minority groups, running can be inclusive, empowering and provide a range of social and physical benefits.
    • But there are a number of societal barriers to VI people getting and staying involved in running.
    • In the US, an innovative project using guide dogs trained for running has led to positive outcomes for both runners and dogs.
    • For VI runners who prefer running indoors, the treadmills used in many gyms are inaccessible.

    How you can get involved

    • The event’s inclusive ethos and specific efforts to encourage VI runners have created a welcoming and accessible environment.
    • Prospective runners and guides can also connect informally through parkruns, running clubs, local VI organisations or running organisations like Achilles International.


    The authors do not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and have disclosed no relevant affiliations beyond their academic appointment.

    Draft template for assessment report for the development of European herbal monographs and European Union list entries - Revision 6

    Retrieved on: 
    Thursday, April 18, 2024

    The completed comments form should be sent to

    Key Points: 
      • The completed comments form should be sent to
        [email protected]
        10
        11
        Keywords

        Committee on Herbal Medicinal Products; HMPC; European Union herbal
        monographs; European Union list of herbal substances, preparations and
        combinations thereof for use in traditional herbal medicinal products; herbal
        medicinal products; traditional herbal medicinal products; traditional use;
        well-established medicinal use; benefit-risk assessment; assessment report

        12

        1
        2

        Changes introduced in section 6 Overall conclusions.

      • Peer-reviewer

        If not the same peer-reviewer
        since last version, all peerreviewers should be listed, and
        the version specified in
        brackets.

      • 22

        23


        on
        .

      • It is a working

        24

        document, not yet edited, and shall be further developed after the release for consultation of the

        25


        .

      • The principle of the template is to make clear
        distinctions between presentation of data (methodology and results)
        and the assessment of the data (?assessor?s comment?).
      • likely from an article but it seems it is concluded by
        the rapporteur; ?According to the author? to be added.
      • Chapters with
        a heading including the word ?conclusion? should include a summary
        of all critical assessment of the assessor for that particular
        chapter.
      • If an assessor?s comment is not needed, the Rapporteur
        should delete the box inserted in the template.
      • ?
        The report should be sufficiently detailed to allow for secondary
        assessment of the available data by other HMPC experts.
      • Overview of available pharmacokinetic data regarding the herbal substance(s), herbal
        preparation(s) and relevant constituents thereof ........................................................... 16

        97
        98

        3.3.

      • Overall conclusions on clinical pharmacology and efficacy ........................................ 27

        Assessment report on
        EMA/HMPC/418902/2005

        Page 4/41

        119

        5.

      • This sections is related to
        available quality standards and there is no need to repeat information
        on all preparations included in the monograph.
      • Search and assessment methodology

        161

        The Rapporteur shall undertake a comprehensive search of relevant
        scientific literature and articles, Acts of law and regulations and
        other relevant sources.

      • Cross-reference to the list of
        references in Annex, which should list separately the references
        supporting the assessment report.
      • 143
        144
        145

        150
        151
        152
        153
        154

        162
        163
        164
        165
        166
        167
        168
        169
        170
        171
        172
        173
        174
        175

        Herbal substance(s)

        Herbal preparation(s)

        Relevant constituents for this assessment report

        Examples of scientific databases to be searched are Medline, PubMed,
        Cochrane Database of Systematic Reviews, EMBASE etc.

      • Assessment report on
        EMA/HMPC/418902/2005

        Page 6/41

        176
        177
        178
        179
        180
        181
        182
        183
        184
        185
        186
        187
        188
        189
        190
        191
        192

        Additional relevant references could also be retrieved from the checked
        references.

      • Examples of books are Hagers Handbuch, The Complete German
        Commission E Monographs, PDR for herbal medicines etc.
      • In addition, information from non-EU regulatory
        authorities for examples Health Canada monographs or WHO monographs
        could be searched, if relevant to herbal substances and preparations in
        EU.
      • 221

        225
        226
        227

        232

        When the assessment report is revised, the rapporteur should briefly
        summarise the main changes under this section.

      • Data are collected using the template entitled ?Document
        for information exchange for the preparation of the assessment report
        for the development of European Union monographs and for inclusion of
        herbal substance(s), preparation(s) or combinations thereof in the
        list? (EMEA/HMPC/137093/2006).
      • Assessment report on
        EMA/HMPC/418902/2005

        Page 8/41

        Herbal substance/

        Indication

        Posology and
        method of

        preparation

        administration

        Posology, age
        groups,
        pharmaceutical
        form, method of
        administration,
        duration of use
        As reported in
        the market
        overview

        As reported in
        the market
        overview

        As reported in
        the market
        overview.

      • Assessment report on
        EMA/HMPC/418902/2005

        Page 10/41

        Herbal substance/

        Indication/Medicinal

        Posology and

        preparation

        use

        method of
        administration

        Posology, age
        groups,
        pharmaceutical
        form, method of
        administration,
        duration of use

        Regulatory Status

        Type of
        regulatory
        status where
        possible, date,
        Country

        287

        This overview is not exhaustive.

      • Clinical Safety/Pharmacovigilance

        836
        837
        838
        839
        840
        841

        See ?Assessment of clinical safety and efficacy in the preparation of
        EU herbal monographs for well-established and traditional herbal
        medicinal products?(EMA/HMPC/104613/2005) for further details.

      • Overall conclusions on clinical safety

        1067

        1068

        In terms of structure, the conclusion should follow the presentation of
        the results above.

      • Overall conclusions

        1092

        1093

        1101

        Describe key aspects only briefly, these will already have been
        described in detail in the respective sections.

      • This section should
        cover all recommended ?well-established use? and ?traditional use?
        indications and conclusions shall be provided for each therapeutic
        indication and each herbal preparation.
      • 1102

        Well established use monograph

        1103
        1104

        The clinical studies supporting well-established use should be
        specified for each therapeutic indication and each herbal preparation.

      • The choice for the wording of traditional use indications vis-?vis existing wordings in monographs in the same therapeutic area should
        be briefly discussed/justified.
      • 1153

        List entry

        1154

        The conclusions should include a statement pointing to the
        possibility/non-possibility to support a European Union list entry.

    A new measure of firm-level competition: an application to euro area banks

    Retrieved on: 
    Thursday, April 18, 2024

    Abstract

    Key Points: 
      • Abstract
        This paper extends Boone (2008) by introducing a competition measure at the individual
        firm level rather than for an entire market segment.
      • We apply this extended Boone indicator to individual bank-level competition
        in the loan market in the four largest euro area countries and Austria.
      • Our new measure of firm-level competition enriches and complements
        other competition measures and provides a promising starting point for future market
        power analyses.
      • The only measure among non-structural measures that is based on the
        concept of competition as a process of rivalry is the Boone (2008) indicator.
      • We introduce
        a new performance measure of competition by extending the Boone indicator to the
        individual firm level.
      • Introduction
        The ability to reliably measure competition is valuable to researchers, analysts, and
        policymakers, especially antitrust authorities, financial supervisors, and central banks.
      • One broad
        category of indicators often used to measure competition are structural competition
        measures, such as static concentration measures, and dynamic measures, e.g., entry and
        exit rates.
      • Out of these measures, the only measure based on the
        concept of competition as a process of rivalry is the Boone indicator.
      • This study introduces a new performance measure of competition by extending the
        Boone indicator to the individual firm level.
      • It thus measures the
        increase in profits in percent of one percentage point increase in efficiency, with marginal
        costs as measure of efficiency.
      • We extend the theoretical
        underpinning of the measurement of competition for the entire market of Boone (2008) by
        a new measure of individual firm-level competition.
      • A concern of the literature is the gap
        between the practical application and the theoretical framework of Boone (2008).
      • We introduce within the same theoretical
        framework a new measure of competition on firm level, the MRP.
      • Our new
        measure significantly augments the antitrust evaluative framework by shedding light on
        whether a merger results in a less competitive market.
      • Our novel indicator focuses on
        firms? incentives to enhance their relative efficiency, as manifested in the elasticity
        between relative profits and efficiency.
      • However, an inefficient firm that is foreclosed could be more
        competitive than the larger efficient firm that relies on its scale economies.
      • Our new metric of competition unveils
        banks? ability to influence their profitability in the short term by cutting costs relative to
        their peers.
      • The new MRP indicator provides the ability to assess the impact
        of individual banks? competitiveness on their interest rate-setting behaviour in loan
        markets.
      • Incorporating this information promises a more refined understanding of the impact and
        timing of monetary policy rates changes on the real economy.
      • Section 3 introduces within the Boone
        (2008) theoretical framework our new measure of individual firm-level competition,
        including the interpretation of the MRP.
      • Section 4 provides an application of our new
        ECB Working Paper Series No 2925

        6

        individual firm-level competition measure to the loan market.

      • The StructureConduct-Performance paradigm (SCP) provides a traditional framework in the field of
        industrial organization for analysing competition behaviour in markets.
      • Concentrated
        markets ease the possibilities to collude implicitly or explicitly and therefore concentrated
        markets result in higher prices and profits.
      • For example, a tougher competition
        setup may lead to a reallocation of market shares, potentially forcing some firms to exit
        the market.
      • This approach gives firms? strategic behaviour
        central stage and focuses on the strategic interaction on prices and quantities, known as
        conjectural variation.
      • Another measure from
        this strand of literature is the H-statistic developed by Panzar and Rosse (1987).
      • The only competition measure from this performance literature where competition is the
        outcome from a process of rivalry is the Boone indicator.
      • A continuous and monotonically increasing relationship exists between
        RPD and the level of competition if firms are ranked by decreasing efficiency.
      • (2013) compare the Boone indicator with the price-cost margin
        and conclude that the profit elasticity is a more reliable measure of competition.
      • The high
        elasticity of profits to efficiency unequivocally indicates that the high market shares and
        therefore high profits are due to high efficiency.
      • A firm that quickly passes changes to the input prices is seen as a price
        taker with little market power.
      • Indicators of competition tend to measure different phenomenon and may provide
        conflicting messages, as reported for European banking by Carbo et al.
      • Application 2: Test the ?quiet life? and related market structure hypotheses using the
        MRP as competition or market structure measure.
      • Data
        Our application to individual bank-level competition in the euro area loan market uses
        balance sheet and income statement data from the Moody?s Analytics BankFocus for the
        calendar years 2013-2020.
      • As such, most publications
        on competition in the euro area includes the largest four member states.
      • Due to these restrictions the database was reduced to an unbalanced panel of up to 1862
        banks (depending on the year) from five euro area countries.
      • Application 1: Measure bank competition using MRP
        Looking at the distribution of the MRP for individual banks (Fig.
      • A similar finding for the four largest euro area countries as a group is
        reported in Carbo et al.
      • Application 2: Test of market structure hypotheses using MRP
        Our new measure of individual-bank competition can be used to test market structure
        theories.
      • Euro area banks? market power,
        lending channel and stability: the effects of negative policy rates, European Central Bank
        Working Paper, 2790 (February).
      • A
        new approach to measuring competition in the loan markets of the euro area, Applied
        Economics, 43 (23), 3155?3167.
      • Impact of bank competition on the interest rate pass-through in the euro area, Applied
        Economics, 45 (11), 1359?1380.

    EQS-News: Tony Elumelu Foundation Announces 10th Cohort of Entrepreneurship Programme – 20,000 Entrepreneurs Funded Across Africa

    Retrieved on: 
    Wednesday, April 10, 2024

    The Tony Elumelu Foundation (TEF), the leading philanthropy empowering young African entrepreneurs from all 54 African countries, has announced the successful entrepreneurs in its tenth selection for the TEF Entrepreneurship Programme.

    Key Points: 
    • The Tony Elumelu Foundation (TEF), the leading philanthropy empowering young African entrepreneurs from all 54 African countries, has announced the successful entrepreneurs in its tenth selection for the TEF Entrepreneurship Programme.
    • The Tony Elumelu Foundation has disbursed US$100,000,000 directly to young African entrepreneurs, who have created over 400,000 direct and indirect jobs, contributing significantly to Africa's economic growth and development.
    • Since inception in 2010, the Tony Elumelu Foundation has pioneered an innovative approach to seeding, capacitising and networking young entrepreneurs across Africa.
    • To learn more about the Tony Elumelu Foundation Entrepreneurship Programme "Decade of Impact" please see here ( https://apo-opa.co/3IULYeS ).